Fakultas Psikologi Universitas Indonesia, 2003
UI - Tesis (Membership)
Atwood, Christee Gabour, author
American Society for Training & Development, 2007
eBooks
Hastings, Sandra, author
American Society for Training and Development Press, 2005
eBooks
Mattalitti, Sitti Fatimah U., author
2006
UI - Tesis (Membership)
Fakultas Psikologi Universitas Indonesia, 2004
UI - Tesis (Membership)