Artikel Jurnal
Isma Kania Muthmainah
Fakultas Teknik Universitas Indonesia, 2014
UI - Tesis (Membership)
Plattner, Francis B.
American Society for Training and Development Press, 1997
eBooks
Gamble, Teri Kwal
Allyn and Bacon, 1994
Buku Teks
Lucas, Stephen E.
McGraw-Hill , 2004
Multimedia