Hannabarger, Charles
Wiley Publishing, Inc, 2007
Buku Teks
Niven, Paul
Elekmedia Computindo, 2005
Buku Teks
Novak, Clare
[American Society for Training & Development Press, American Society for Training & Development Press], 2000
eBooks
Amin Widjaja Tunggal
Harvarindo, 2000
Buku Teks
Nadief Kaelani
Prima Pundi Redana, 2010
Buku Teks