Krompf,Warren M., author
American Management Association, 2009
eBooks
Hemisphere , 1991
Buku Teks
Ramsay, Michael C., author
John Wiley & Sons, 2002
Buku Teks
edited by Ronald J. Prinz
Jessica Kingsley, 1991
Buku Teks
Mitchell, Jennifer K., author
American Society for Training & Development, 2006
eBooks