Wisnu Jatmiko
UI Publishing, 2019
Buku Teks
Prasannan
Cadco Management services, 1982
Buku Teks
Kuther, Tara L., editor
Thomson, 2006
Buku Teks
Azar, Brian
[American Management Association, ], 2004
eBooks
Reitman, Annabelle
[American Society for Training & Development Press, American Society for Training & Development Press], 2003
eBooks