Russell, A.D.
Ellis Horwood, 1990
Buku Teks
McArdle, Geri
[American Management Association;, ], 2010
eBooks
Marquardt, Michael J.
American Society for Training and Development Press, 2005
eBooks
ALARA Inc, Interchang and Prosperity Press, 2009
Majalah, Jurnal, Buletin
Majda Trobok, Nenad Miscevic, Berislav Zarnic, editors
[;Spinger Science, Springer], 2012
eBooks