Lisa Haneberg, editor
American Society for Training & Development, 2012
eBooks
edited by Lawraine Wood
Taylor Graham, , 1987
Buku Teks
Edward Elgar, 2003
Buku Teks
edited by William Ellet
Harvard Business School Publishing, 1997
Buku Referensi
Tobin, Daniel R., 1946-
American Management Association, 2008
eBooks