Coplan, James, author
Bantam Books, 2010
Buku Teks
Betof, Edward, author
American Society for Training & Development, 2009
eBooks
Taguchi, Sherrie Gong, author
[American Management Association, ], 2002
eBooks
Dessy Ilsanti Sjarif, author
Universitas Indonesia, 2012
UI - Tesis (Open)
Hatton, Sue, author
Learning Matters, 2011
Buku Teks