McLarney, William J., author
Richard D. Irwin, 1961
Buku Teks
Westwood, Roberta, author
American Society for Training & Development, 2011
eBooks
Miner, Nanette, author
[American Society for Training & Development Press, American Society for Training & Development Press], 2005
eBooks
edited by Tan Jing Jee & You Poh Seng with Emily Ding
Addison-Wesley Publishing, 1987
Buku Referensi
[Fakultas Ilmu Pengetahuan dan Budaya Universitas Indonesia, ], 2014
UI - Makalah dan Kertas Kerja