United States
Peter F. Drucker
United States. Congress. Commission on Security and Cooperation in Europe
David A. Whetten
Gary A. Yukl
Daniel Goleman
Paulo Freire
Peter Senge
Richard Osman
United States. General Accounting Office
C. K. Prahalad
Rose Marie Nieswiadomy
Peter R. Scholtes
San Francisco (Calif.). Office of the Controller. City Services Auditor Division.
Bing-lian Liu
Graham Hancock