Sullivan, Rick, author
[American Society for Training & Development Press, American Society for Training & Development Press], 2005
eBooks
Adair, John, author
Pan Books , 1988
Buku Teks
Lund, Arnie, author
Elsevier, 2011
Buku Teks
Anderson, Alan H.
Cambridge Blackwell, 1994
Buku Teks
Ovila Nanci Septiawan, author
Fakultas Psikologi Universitas Indonesia, 2014
UI - Tesis (Membership)