Harvey, Donald F., author
Prentice Hall International, 1996
Buku Teks
Harvey, Donald F., author
Prentice-Hall, 1992
Buku Teks
editor, Tora Estep
[American Society for Training and Development Press;, ], 2004
eBooks
Christman, Luther P., author
Westview Press, 1981
Buku Teks
An Aspen Publication, 1995
Buku Teks