Lee, David
The problem of sociology: an introduction to the discipline
Routledge, 1995
 Buku Teks SO
Mattone, John
Talent leadership: a proven method for identifying and developing high-potential employees
[American Management Association, ], 2013
 eBooks
Lavigna, Robert J.
Engaging government employees: motivate and inspire your people to achieve superior performance
American Management Association, 2013
 eBooks
Barnard, Neal D.
Dr. Neal Barnard's program for reversing diabetes : the scientifically proven system for reversing diabetes without
Rodale Press, 2007
 Buku Teks SO
Problem-based learning as an educational strategy
edited by Peter A.J. Bouhuijs, H.G. Schmidt, H.J.M. van Berkel
Network Publications, 1993
 Buku Teks SO