Richman, Larry
[American Management Association, ], 2002
eBooks
Christensen, Howard B.
Hoghton Mifflin, 1977
Buku Teks
Sartika Kurniali
PT Gramedia, 2009
Buku Teks
McArdle, Geri
American Society for Training & Development, 2006
eBooks
Drago, Carl
Blackwell Publishing, 2007
Buku Referensi