Mooney, Ruth A.
Delmar , 1996
Buku Teks
Khan, M. Gabriel
Saunders , 2003
Buku Teks
Barksdale, Susan
[American Society for Training & Development Press, American Society for Training & Development Press], 2002
eBooks
Edited by Duncan L. Hughes, Michele P. Brossett, James a. Gore, John R. Olson
CRC Press, 2010
Buku Teks
Edited by Ali K. Kamrani, Amad Abouel Nasr
Springer Science+Business Media, 2006
Buku Teks