edited by Jane G. Zapka
Third Party Publishing, 1982
Buku Teks
edited by William B. Ward, Frances Marcus Lewis
Jessica Kingsley Publishers, 1991
Buku Referensi
Richie, Beth E., author
National Institute of Justice, 2000
Buku Teks
Phillips, Jack, author
[American Society for Training & Development Press;, ], 2000
eBooks
edited by Bill N. Schwartz, Philip M.M. Reckers and Arnold Wright
JAI Press, 1986
Buku Teks