Pair Programming demystified

•

206 likes•49,108 views

Daftcode

Engineering Software

I am bored with  
technology X / project X / customer X

For most people it works
with most partners
Truth

Diﬀerent kind of pairing is
eﬀective at most stages
Truth

Navigator finds  
only syntax mistakes
Myth

Good pairing has a tremendous impact  
on the code's design and architecture
Truth

junior & senior
extrovert & introvert
backend & frontend
Types of pairs

• Started with casual pairing
• One month experiment ~100% pairing
• Ping-pong pair programming: 90%
• Team decision: continue
Introducing pair  
programming at DaftCode

@marekkirejczyk
Pair early, pair often
www.daftcode.com

What's hot

Design Sprints for Innovation

Dave Hogue

The Science of Presentations

Mike Taylor

Le jeu du prénom en mode multitâche

Fabrice Aimetti

Choose Boring Technology

Dan McKinley

Master the Monorepo

Roman Minchyn

Design Thinking

Design Lab

Building your Design A-Team

Jason Mesut

Developers building applications on Kubernetes today are being asked to not just code applications -- they are also responsible for shipping and running their applications, too. We often talk about needing a Kubernetes platform, but are we really looking for a PaaS? Or instead, are we looking for some kind of developer control plane with a Goldilock-sized collection of tools that provides just the right amount of platform? This talk will look back on my experience of building platforms, both as an end-user and now as part of an organization helping our customers do the same. We’ll wrap this talk with a walk-through of the CNCF ecosystem through the developer control plane lens, and look at what’s next in the future of this important emerging category.

Fall 22: "From Kubernetes to PaaS to... err, what's next"

Daniel Bryant

Design Mindset

Francis Xavier

The Design Sprint: A Fast Start to Creating Digital Products People Want

dpdnyc

A talk given at the Melbourne Cynefin meetup. A set of riffs on how to facilitate teams exploring the Complex Domain. Will Evans explores the convergence of practice and theory using Lean Systems, Design Thinking, DevOps, and LeanUX with global corporations from NYC to Berlin to Singapore. As Chief Design Officer at PraxisFlow, he works with a select group of corporate clients undergoing Lean and Agile transformations across the entire organization. Will is also the Design Thinker-in-Residence at New York University's Stern Graduate School of Management. Will was previously the Managing Director of TLCLabs, the world's leading Lean Design Innovation consultancy where he brought LeanUX and Design Thinking to large media, finance, and healthcare companies. Before TLC, he led experience design and research for TheLadders in New York City. He has over 15 years industry experience in service design innovation, user experience strategy and research. His roles include directing UX for social network alanysis & terrorism modeling at AIR Worldwide, UX Architect for social media site Gather.com, and UX Architect for travel search engine Kayak.com. He worked at Lotus/IBM where he was the senior information architect working in Knowledge Management, and for Curl - a DARPA-funded MIT project when he was at the MIT Laboratory for Computer Science. He lives in New York, NY, and drinks far too much coffee. He Co-Founded and Co-Chaired the LeanUX NYC conference now in it’s 6th year, founded the LEAD SUMMIT NYC, and was also the User Experience track chair for the Agile 2013 and Agile 2014 conferences.

Facilitating Complexity: A Pervert's Guide to Exploration

William Evans

Coding for kids

STELIANCREANGA

What is-agile henrik kniberg august 20 2013

Richard P. Doerer

An Internal of LINQ to Objects

Yoshifumi Kawai

Limited WIP Meeting presentation - The Phoenix Project book review

Rudiger Wolf

Pixar's 22 Rules to Phenomenal Storytelling

Gavin McMahon

52 tools for any company to innovate like a Startup /by @nickdemey @boardofinno

Board of Innovation

Design Sprints have become widely adopted globally by companies as a tool for #innovation and problem-solving and one of the most hyped processes around. We designed Design Sprint 3.0 as a response to being in Sprints where we realised our clients did not know what the problem was, or if it even existed. Or alternatively, the problems we were tackling were too broad to allow a practical solution or too narrow to be worth the investment. So we have re-engineered the Design Sprint framework to conclusively define the problem before the sprint, get the stakeholder buy-in, and ensure the sprint team is working on a problem worth the investment. Here's how it differs from the original process popularised by the book SPRINT by Jake Knapp, that we will refer to as Design Sprint 1.0. Find out more by clicking the link on our profile!

Design Sprint 3.0 vs Design Sprint 1.0 (SPRINT Book)

Design Sprint Academy

Unity C#と.NET Core(MagicOnion) C# そしてKotlinによるハーモニー

Yoshifumi Kawai

Design Thinking Introduction

Varun Jhariya

What's hot (20)

Design Sprints for Innovation

The Science of Presentations

Le jeu du prénom en mode multitâche

Choose Boring Technology

Master the Monorepo

Design Thinking

Building your Design A-Team

Fall 22: "From Kubernetes to PaaS to... err, what's next"

Design Mindset

The Design Sprint: A Fast Start to Creating Digital Products People Want

Facilitating Complexity: A Pervert's Guide to Exploration

Coding for kids

What is-agile henrik kniberg august 20 2013

An Internal of LINQ to Objects

Limited WIP Meeting presentation - The Phoenix Project book review

Pixar's 22 Rules to Phenomenal Storytelling

52 tools for any company to innovate like a Startup /by @nickdemey @boardofinno

Design Sprint 3.0 vs Design Sprint 1.0 (SPRINT Book)

Unity C#と.NET Core(MagicOnion) C# そしてKotlinによるハーモニー

Design Thinking Introduction

Viewers also liked

Pair Programming

Naresh Jain

Keynote presented at SDD (12th May 2015) Somewhere in the heart of a development process, essential to the very being of a product's existence, are the people who write, consider and wrestle with code. What motivates and demotivates them? What are the intellectual challenges and rewards? What are the skills they have and need and cognitive biases and environment they work with and against? This talk by the editor of 97 Things Every Programmer Should Know considers the act of programming and those who do it and want to get better at it, from the perspective of development process to craft, from architecture to code.

The Programmer

Kevlin Henney

A Beginners Guide to noSQL

Mike Crabb

24 Awesome Infographic Ideas to Inspire Your Next Beautiful Creation

Piktochart

Getting Information through HTML Forms

Mike Crabb

Paris ML meetup

Yves Raimond

The Tester Role & Scrum

Johan Hoberg

10 more lessons learned from building Machine Learning systems - MLConf

Xavier Amatriain

What Happens When Robots And Machines Learn On Their Own? This slide deck is an introduction to exponential technologies for an audience of designers and developers of workforce training materials. The Blended Learning And Technologies Forum (BLAT Forum) is a quarterly event in Auckland, New Zealand that welcomes practitioners, designers and developers of blended learning instructional deliverables across different industries of the New Zealand economy.

The Future Of Work & The Work Of The Future

Arturo Pelayo

What I learned teaching programming to 150 beginners

Etiene Dalcol

FOWA London 2015 Testing different versions of your site can be hugely distracting; it’s both trivial and non-trivial, and terribly time-consuming. Layer-based iterative development can help by effectuating all changes in the user’s browser instead of the site’s backend. Manu will present this new approach to developing the best performing version of a site using the Frosmo javascript tag and SaaS platform. Together they can save time and let those most interested in the results be in charge of the tests, without putting your site at risk.

Let Non-Developers Develop your Site. Manu Raivio

Future Insights

It's easy to look at where you are and where you want to be and think, “I’ll never get there” and plateau with your current skill set. Maybe you’re a developer who is looking to level up their career. Maybe you’re someone who wants to break into a development career for the first time. Wherever you’re at, I want to teach you the same methods I use every single day to keep my skills sharp and to keep myself connected to interesting and rewarding projects and relationships.

Becoming a Better Developer #WCA2

Brian Richards

How to Battle Bad Reviews

Glassdoor

Civil engineering is among few oldest engineering domains which have helped world civilization shape up its future. As an engineering domain directly related to the infrastructural development of the country, civil engineering has helped the world develop its existing identity. Read more interesting content, at www.thecareermuse.co.in - We intend to inform and inspire recruiters, job seekers and anyone with an interest in the workplace and HR technology. Hope you enjoyed reading the Infographic. Feel free to share your feedback with us at @CareerBuilderIn

Civil Engineering – Oldest Yet A Highly Sought After Career Choice in India

Ankur Tandon

An immersive workshop at General Assembly, SF. I typically teach this workshop at General Assembly, San Francisco. To see a list of my upcoming classes, visit https://generalassemb.ly/instructors/seth-familian/4813 I also teach this workshop as a private lunch-and-learn or half-day immersive session for corporate clients. To learn more about pricing and availability, please contact me at http://familian1.com

Visual Design with Data

Seth Familian

Learning from a Culture of Collaboration: Engineers do it better. What can de...

Intuit Inc.

Build Features, Not Apps

Natasha Murashev

Ember.js is an opinionated web framework, that allows developers to focus less on boilerplate, and focus more on what makes their app unique. We'll go over some of the best practices of using Ember for cross-device development, and then build an app from a single codebase that produces a standalone desktop app, an in-browser web app and an iOS/Android app. Along the way we'll cover: * A high level overview of the Ember.js ecosystem, including build tools and "add-ons" * Recent improvements to Ember's view layer, and the ramifications on mobile performance * Best practices for tooling & build pipelines, to maintain your cross-device compatibility

Write Once, Run Everywhere

Mike North

Become a Better Engineer Through Writing

Intuit Inc.

Apple's next press event happens on Monday, March 21 at the company's campus in Cupertino, California. We've already talked about what to expect, in our PPT but to recap: Apple is expected to announce a new 4-inch iPhone that combines the size of the iPhone 5S with features from the iPhone 6 and 6S. It will also supposedly be upgrading the 9.7-inch iPad, giving it updated internals, a Smart Connector, and Apple Pencil support imported from the iPad Pro. The Apple Watch may get some love in the form of new band colors and combinations, but rumors say not to expect a full hardware refresh just yet.

Top Rumors About Apple March 21 Big Event

ChromeInfo Technologies

Viewers also liked (20)

Pair Programming

The Programmer

A Beginners Guide to noSQL

24 Awesome Infographic Ideas to Inspire Your Next Beautiful Creation

Getting Information through HTML Forms

Paris ML meetup

The Tester Role & Scrum

10 more lessons learned from building Machine Learning systems - MLConf

The Future Of Work & The Work Of The Future

What I learned teaching programming to 150 beginners

Let Non-Developers Develop your Site. Manu Raivio

Becoming a Better Developer #WCA2

How to Battle Bad Reviews

Civil Engineering – Oldest Yet A Highly Sought After Career Choice in India

Visual Design with Data

Learning from a Culture of Collaboration: Engineers do it better. What can de...

Build Features, Not Apps

Write Once, Run Everywhere

Become a Better Engineer Through Writing

Top Rumors About Apple March 21 Big Event

Similar to Pair Programming demystified

Pair Programming

Siriwat Jithunsa

Pair Programming Presentation

ThoughtWorks

ESSAP Agile Loops

Federico Gobbo

Cosa abbiamo scoperto in questi 20 anni? Che cercare di cambiare il mondo focalizzandoci su un singolo aspetto, il processo, il TDD, il clean code, non porta da nessuna parte. I veri cambiamenti avvengono quando scopriamo le reali interazioni tra le parti, quando lasciamo la specializzazione e cominciamo a vedere il vero quadro d'insieme. In questo talk vedremo come scelte architetturali apparentemente innocue, finiscano per impattare il processo, ed in generale di come processi, pratiche, architetture, persone e scelte di business non possano essere considerate come elementi disaccoppiati tra loro.

L'illusione dell'ortogonalità

Alberto Brandolini

Effective Collaborative Programming3

Xebia IT Architects

Pair Programming Explained By Shrikant Vashishtha

ShriKant Vashishtha

Effective Collaborative Programming3@March 19th 2009

guest5d31a5

Sweating Details - Slides from my talk at Form Function Class 6 in Manila Philippines on Nov 14th, 2015. This talk is about sweating details and how small tweaks and changes can make a big difference in any of the web design stages. From optimising the process, via UX and design all the way to performance, this talk covers possible tweaks and recommendations with some practical examples to improve the overall experience of our products.

Form Function Class 6, Manila, Philippines 14/11/2015

Holger Bartel

Why #OpenDX?

Arty Starr

Software Development Practices Patterns: from Pair to Mob Programming

Herez Moise Kattan

Lecture 25

Skillspire LLC

Agile Methodologies And Extreme Programming - Svetlin Nakov

Svetlin Nakov

The Elements of Style

Derek Graham

Lately, our Designveloper team started implementing a new working method – Pair Programming, where is two programmers sitting side by side at one computer, sharing just a single workspace. We were very nervous at the first time. You know, we, programmers got used to using our own swords and fighting solo when getting into the war. Then, suddenly you have to share your weapons with another guy, how confusing it could be? Surprisingly, we have to admit that much like a cup of coffee a day, pairing tastes awful at first, but we end up liking it after just a few weeks imbibing of it repeatedly. So in today’s post, I’m going to share with you some reasons why we fell in love with pair programming and why it’s a good idea for every ninja coder to give it a try.

Why pair programming is a good idea

Designveloper

Vakmanschap is meesterschap

Martijn Dashorst

Code quality directly impacts how easy or hard your job is. The higher the quality, the easier it is for anyone (including you) to quickly jump in and get to work. Where do you start? In this session, Tonya Mork will empower you to simplify your code while dramatically increasing its code quality. It's all about building <human code>, code that is highly human readable and understandable. This slide deck is from a session I gave for WPSessions. https://wpsessions.com/sessions/code-quality-makes-jobs-easier/

Code Quality Makes Your Job Easier

Tonya Mork

Developing an Engineering Mindset by Junaid Javed

Jamil Goheer

Working in teams vs working individually

Laurynas Antanavičius, PMI-ACP

Xp not windows xp

Tung Nguyen Thanh

[XP Day Vietnam 2015] XP is not windows XP

Đới Học viện Agile

Similar to Pair Programming demystified (20)

Pair Programming

Pair Programming Presentation

ESSAP Agile Loops

L'illusione dell'ortogonalità

Effective Collaborative Programming3

Pair Programming Explained By Shrikant Vashishtha

Effective Collaborative Programming3@March 19th 2009

Form Function Class 6, Manila, Philippines 14/11/2015

Why #OpenDX?

Software Development Practices Patterns: from Pair to Mob Programming

Lecture 25

Agile Methodologies And Extreme Programming - Svetlin Nakov

The Elements of Style

Why pair programming is a good idea

Vakmanschap is meesterschap

Code Quality Makes Your Job Easier

Developing an Engineering Mindset by Junaid Javed

Working in teams vs working individually

Xp not windows xp

[XP Day Vietnam 2015] XP is not windows XP

Recently uploaded

Double Revolving field theory-how the rotor develops torque

BhangaleSonal

Learn the concepts of Thermodynamics on Magic Marks

Magic Marks

From customer value engagements to hands-on production support, our Services span across every stage of our customers digital transformation journey, to help ensure that every customer is successful in their adoption of our solutions. • Implementation, Upgrade, Migration, and Maintenance Services • On-Premises and On-Cloud • COTS Training Services; On-Site and Virtual • Software Support Services; Legacy and 3DEXPERIENCE • Value Engagement & Blueprinting • Specialized Consulting and Support Services • Customized Training Services • Automation and Configuration Services • Technical Resource Augmentation Services • Project Management • Know-how Training (mentoring) and Resource Augmentation

Navigating Complexity: The Role of Trusted Partners and VIAS3D in Dassault Sy...

Arindam Chakraborty, Ph.D., P.E. (CA, TX)

The purpose of Integrated Test Rig is to assess performance of Fuel Cooled Oil Cooler (FCOC), HP Pump & Oil Pump prior to fitment on Aero Engine. The design of rig is such that it can cater to individual testing of individual LRU or integrated testing of all the LRU’s installed together (in combination). The pumps under test shall be mounted directly on the high-speed electric motor flange through adapter quill shaft assembly. Variable speed drives shall be provided for all the pumps under testing. The rig shall cater for real time monitoring and recording of performance parameters. KEY FEATURES Key features of this Rig are as follows: - 1. It has separate power packs for both the fluids i.e. ATF Power pack for ATF Fluid, OX Power Pack for OX-27 Oil. 2. This Rig is designed for high temperature Application. It works on 200 deg. Celsius. 3. Two Dedicated heating systems have been integrated with this Rig to raise the temperature of OX-27 Oil. 4. In both Power Packs insulated tanks are being used, which is good for safe operation and safety of operator. 5. This rig is designed in such a way, that it’s OX power pack is in its left side, ATF Power pack is in right Side and test bed is in Centre. 6. A big Test bed have been provided for smooth testing of UUT’s. 7. All piping is being insulated for safe operation and maintenance. 8. It comprises with DAQ System. 9. This rig can test several components at a time, together or separately. Application All the UUT’s are mounted on HTFE-25 Engine after successful performance testing of those. Application of this Rig are as follows: - 1. One of its application is to test LP Pump of HTFE-25. It is designed for functional testing of LP Pump. a. Free Flow Test b. Load Test 2. It is used to test HP Pump of HTFE-25. It is designed for functional testing of HP Pump. a. Free Flow Test b. Load Test 3. It is used to test Oil Pump of HTFE-25. It is designed for functional testing of Oil Pump. 4. It is used to test FCOC of HTFE-25.

Integrated Test Rig For HTFE-25 - Neometrix

Neometrix_Engineering_Pvt_Ltd

A Study of Urban Area Plan for Pabna Municipality

Morshed Ahmed Rahath

This presentation takes a deep dive into the methodologies of HAZID and HAZOP, two cornerstone risk assessment techniques in the oil and gas industry. Over 12 slides, we compare the structured approaches of both HAZID and HAZOP, detail their individual steps, and discuss their benefits and drawbacks. The aim is to provide professionals with concise insight to make informed decisions about which method suits their project's needs. By the end, viewers will have understood each method's strategic value in the pursuit of workplace safety and efficiency.

Hazard Identification (HAZID) vs. Hazard and Operability (HAZOP): A Comparati...

soginsider

2016EF22_0 solar project report rooftop projects

smsksolar

Model Call Girl Services in Delhi reach out to us at 🔝 9953056974🔝✔️✔️ Our agency presents a selection of young, charming call girls available for bookings at Oyo Hotels. Experience high-class escort services at pocket-friendly rates, with our female escorts exuding both beauty and a delightful personality, ready to meet your desires. Whether it's Housewives, College girls, Russian girls, Muslim girls, or any other preference, we offer a diverse range of options to cater to your tastes. We provide both in- call and out-call services for your convenience. Our in-call location in Delhi ensures cleanliness, hygiene, and 100% safety, while our out-call services offer doorstep delivery for added ease. We value your time and money, hence we kindly request pic collectors, time-passers, and bargain hunters to refrain from contacting us. Our services feature various packages at competitive rates: One shot: ₹2000/in-call, ₹5000/out-call Two shots with one girl: ₹3500 /in-call, ₱6000/out-call Body to body massage with sex: ₱3000/in-call Full night for one person: ₱7000/in-call, ₱10000/out-call Full night for more than 1 person : Contact us at 🔝 9953056974🔝. for details Operating 24/7, we serve various locations in Delhi, including Green Park, Lajpat Nagar, Saket, and Hauz Khas near metro stations. For premium call girl services in Delhi 🔝 9953056974🔝. Thank you for considering us

Call Girls in South Ex (delhi) call me [🔝9953056974🔝] escort service 24X7

9953056974 Low Rate Call Girls In Saket, Delhi NCR

data_management_and _data_science_cheat_sheet.pdf

JiananWang21

Employee leave management system project.

Kamal Acharya

Rule 1 − Check for the blocks connected in series and simplify. Rule 2 − Check for the blocks connected in parallel and simplify. Rule 3 − Check for the blocks connected in feedback loop and simplify. Rule 4 − If there is difficulty with take-off point while simplifying, shift it towards right. Rule 5 − If there is difficulty with summing point while simplifying, shift it towards left. Rule 6 − Repeat the above steps till you get the simplified form, i.e., single block.

Block diagram reduction techniques in control systems.ppt

NANDHAKUMARA10

Air Compressor reciprocating single stage

Abc194748

Tamil Call Girls Bhayandar WhatsApp +91-9930687706, Best Service

meghakumariji156

notes on Evolution Of Analytic Scalability.ppt

MsecMca

Generative AI or GenAI technology based PPT

bhaskargani46

Built environment is known for its capacity, capability, role, relevance and importance to change the quality of life of the occupants and communities. Presentation focuses on options which need to be leveraged to make buildings sustainable, cost-effective, energy efficient, resource efficient, qualitative over its entire life-cycle through designing, construction, operation. It calls for making buildings green and sustainable.

COST-EFFETIVE and Energy Efficient BUILDINGS ptx

JIT KUMAR GUPTA

Work-Permit-Receiver-in-Saudi-Aramco.pptx

JuliansyahHarahap1

DeepFakes presentation : brief idea of DeepFakes

MayuraD1

Saudi Arabia [ Abortion pills) Jeddah/riaydh/dammam/+918761049707☎️] cytotec tablets uses abortion pills 💊💊 How effective is the abortion pill? 💊💊 +918761049707) "Abortion pills in Jeddah" how to get cytotec tablets in Riyadh " Abortion pills in dammam*💊💊 The abortion pill is very effective. If you’re taking mifepristone and misoprostol, it depends on how far along the pregnancy is, and how many doses of medicine you take:💊💊 +918761049707) how to buy cytotec pills At 8 weeks pregnant or less, it works about 94-98% of the time. +918761049707[ 💊💊💊 At 8-9 weeks pregnant, it works about 94-96% of the time. +918761049707) At 9-10 weeks pregnant, it works about 91-93% of the time. +918761049707)💊💊 If you take an extra dose of misoprostol, it works about 99% of the time. At 10-11 weeks pregnant, it works about 87% of the time. +918761049707) If you take an extra dose of misoprostol, it works about 98% of the time. In general, taking both mifepristone and+918761049707 misoprostol works a bit better than taking misoprostol only. +918761049707 Taking misoprostol alone works to end the+918761049707 pregnancy about 85-95% of the time — depending on how far along the+918761049707 pregnancy is and how you take the medicine. +918761049707 The abortion pill usually works, but if it doesn’t, you can take more medicine or have an in-clinic abortion. +918761049707 When can I take the abortion pill?+918761049707 In general, you can have a medication abortion up to 77 days (11 weeks)+918761049707 after the first day of your last period. If it’s been 78 days or more since the first day of your last+918761049707period, you can have an in-clinic abortion to end your pregnancy.+918761049707 Why do people choose the abortion pill? Which kind of abortion you choose all depends on your personal+918761049707preference and situation. With+918761049707medication+918761049707 abortion, some people like that you don’t need to have a procedure in a doctor’s office. You can have your medication abortion on your own+918761049707schedule, at home or in another comfortable place that you choose.+918761049707 You get to decide who you want to be with during your abortion, or you can go it alone. Because+918761049707medication abortion is similar to a miscarriage, many people feel like it’s more “natural” and less invasive. And some+918761049707 people may not have an in-clinic abortion provider close by, so abortion pills are more available to+918761049707 them. +918761049707 Your doctor, nurse, or health center staff can help you decide which kind of abortion is best for you. More questions from patients: Saudi Arabia+918761049707 CYTOTEC Misoprostol Tablets. Misoprostol is a medication that can prevent stomach ulcers if you also take NSAID medications. It reduces the amount of acid in your stomach, which protects your stomach lining. The brand name of this medication is Cytotec®️.+918761049707) Unwanted Kit is a combination of two medicines, which is used for

Kuwait City MTP kit ((+919101817206)) Buy Abortion Pills Kuwait

jaanualu31

Bridge Jacking Design Sample Calculation.pptx

nuruddin69

Recently uploaded (20)

Double Revolving field theory-how the rotor develops torque

Learn the concepts of Thermodynamics on Magic Marks

Navigating Complexity: The Role of Trusted Partners and VIAS3D in Dassault Sy...

Integrated Test Rig For HTFE-25 - Neometrix

A Study of Urban Area Plan for Pabna Municipality

Hazard Identification (HAZID) vs. Hazard and Operability (HAZOP): A Comparati...

2016EF22_0 solar project report rooftop projects

Call Girls in South Ex (delhi) call me [🔝9953056974🔝] escort service 24X7

data_management_and _data_science_cheat_sheet.pdf

Employee leave management system project.

Block diagram reduction techniques in control systems.ppt

Air Compressor reciprocating single stage

Tamil Call Girls Bhayandar WhatsApp +91-9930687706, Best Service

notes on Evolution Of Analytic Scalability.ppt

Generative AI or GenAI technology based PPT

COST-EFFETIVE and Energy Efficient BUILDINGS ptx

Work-Permit-Receiver-in-Saudi-Aramco.pptx

DeepFakes presentation : brief idea of DeepFakes

Kuwait City MTP kit ((+919101817206)) Buy Abortion Pills Kuwait

Bridge Jacking Design Sample Calculation.pptx