David, Fred R., author
Prentice-Hall, 1995
Buku Teks
Carpenter, Mason A.
Pearson, 2007
Buku Teks
Benedicta Prihatin Dwi Riyanti, author
Fakultas Psikologi Universitas Indonesia, 1994
UI - Tesis (Membership)
Gaines, Kathryn, author
American Society for Training & Development, 2006
eBooks
Olsen, Michael D., author
Prentice-Hall, 2008
Buku Teks