Sugar, Steve, author
American Society for Training & Development, 2006
eBooks
Molyneaux, Dorothy
Allyn and Bacon,, 1982.
Buku Teks
Carnes, Barbara, author
American Society for Training & Development, 2010
eBooks
Kenakin, Terrence P., author
Academic Press, 2014
Buku Teks
Sheehan, Elaine, 1964-
Element Books, 1995
Buku Teks