Espich, James E.,
Fearon Publishers, 1967
Buku Teks
Myers, Judith Gillespie, author
[American Society for Training and Development Press;, ], 2005
eBooks
Welty, Don A
Gregg Division, 1976
Buku Teks
Valenti, Diane, author
American Management Association, 2009
eBooks
Rangga Esaputra, author
2017
UI - Skripsi Membership