Chalofsky, Neal
American Society for Training & Development Press, 2001
eBooks
Munson, Lawrence S.
McGraw-Hill, 1984
Buku Teks SO
Sabine Mertens Oishi
Thousand Oaks : SAGE PUBLIKATION, 2003,
Buku Referensi
editor, Cat Sharpe
[American Society for Training and Development Press, American Society for Training and Development Press], 1997
eBooks
Linda B. Bourque, Evie P. Filelder
Thousand Oaks : SAGE PUBLIKATION, 2003,
Buku Referensi