Cummings, Thomas G., 1944-, author
CT Cengage Learning, 2015
Buku Teks
Cummings, Thomas G., 1944-, author
Thomson, 2005
Buku Teks
Carr, Patricia A.
American Society for Training & Development, 2006
eBooks
McArdle, Geri, author
American Society for Training & Development, 2006
eBooks
edited by George F. Wieland
Health Administration Press, 1981
Buku Teks