8. Argyris C. & Schon, D. (1978) Organizational Learning: A Theory of Action Perspective. Reading: Addison-Wesley. Blanchard, Ken (Situational Leadership) Block, Peter (Transactional, Transformational Leadership) Buckingham, Marcus (Skills Approach, Personal Leadership Assessment) Cooperrider, David (Appreciative Inquiry) Coghlan, D. & Brannick (2007). Doing Action Research in your own Organization. Thousand Oaks: Sage. Collins, Jim (Good To Great, Built to Last, How the Mighty Fall) Covey, Steven (Skills Approach) Drexler - Sibbet (Team Performance Model) http://www.grove.com/site/ourwk_gm_tp.html Drucker, Peter (Skills Approach)