Crittendon, Robert, author
[American Management Association;, ], 2002
eBooks
Deverell, C.S., author
London, Gee & Co
Buku Teks
Dalton Maxine ... et.all
Jossey-Bass, 2002
Buku Teks
Webber, Ross A., author
Richard D. Irwin, 1981
Buku Teks
Haneberg, Lisa, author
American Society for Training & Development, 2007
eBooks