9Spreitzer, G. M, 1995, "Psychological Empowerment in the Workplace: Dimensions, Measurement and Validation", Academy of Management Journal,38(5): pp.1442-1465.
10Spreitzer, G. M, Janasz, S. C, & Quinn, R. E, 1999,"Empowered to Lead: The Role of Psychological Empowerment in Leadership", Journal of Organizational Behavior, 20 (4): pp.511-526.