Gamble, Teri Kwal, author
American Society for Training & Development, 2007
eBooks
Buskirk, Richard Hobart, 1927-, author
McGraw-Hill, 1992
Buku Teks
Moh. Dulkiah, author
Fakultas Ilmu Sosial dan Ilmu Politik Universitas Indonesia, 2003
UI - Tesis (Membership)
Simanjuntak, Sangap Prawira, author
Fakultas Ilmu Sosial dan Ilmu Politik Universitas Indonesia, 2004
UI - Tesis (Membership)
Sugars, Bradley J., author
McGraw-HIll , 2006
Buku Teks