1) Abraham Maslow "A Theory of Human Motivation" originally published in the 1943 Psychological Review, number 50,-page 838. Maslow, A.H. (1996). Higher
2) Maslow, A.H. (1996). Higher motivation and the new psychology. In E. Hoffman (Ed.), Future visions: The unpublished papers of Abraham Maslow. Thousands Oaks, CA: Sage, page 89
3) Peter F. Drucker, "Managing Oneself," Best of HBR 1999.
4) Ghoshal, Sumantra; Bartlett Christopher A. (1997) The Individualized Corporation: A Fundamentally New Approach to Management, HarperCollins, page 286