Kelvin Seifert
James Ferguson
Richard W. Paul
Robert P. Pangrazi
United States. General Accounting Office
David Werner
India. Office of the Registrar General.
Jean Piaget
Patrick Holleman
Ashley Montagu
Mike Davis
Alfred Adler
Kerry Patterson
Maria Montessori
Melanie Klein
Peter F. Drucker
Murray Shukyn
Fitzhugh Dodson
Alex Kotlowitz