DruckerPeter F. (2001). Managing Challenges for the 21st Century. New York: Harper Business.
2.
RobbinsStephen P. (1998). Organizational Behavior: Concepts, Controversies Applications, 8th ed.Prentice-Hall.
3.
StoneRomero, EugeneF. (1994). “Construct Validity Issues in Organizational Behavior Research,” in GreenbergJerald (ed.). Organizational Behavior: The State of the Science. Lawrence Erlbaun Associates.