Jardine, David W., author
Routledge, 2008
Buku Teks
Gronstedt, Anders, author
American Society for Training & Development, 2007
eBooks
editor, Cat Sharpe
American Society for Training and Development Press, 2006
eBooks
Lucas, Bob, author
American Management Association, 2008
eBooks
Mering, Margaret, editor
Libraries Unlimited, 2014
Multimedia