Tingley, Judith C., author
American Management Association;;, 1996
eBooks
Chasen,Everett, author
American Society for Training & Development, 2012
eBooks
Farid Kasmi, author
Fakultas Teknik Universitas Indonesia, 2008
UI - Skripsi (Open)
O`Hair, Dan, author
Allyn and Bacon, 2011
Buku Teks
Holt, Rinehart and Winston of Canada, Limited, 1988
Buku Teks