Turmel, Wayne, author
American Society for Training & Development, 2011
eBooks
Steine, Naomi, 1966- , author
American Management Association, 2009
eBooks
Machi, Lawrence A., author
Sage, 2016
Buku Teks
McBride, John, author
BBC Books , 1996
Buku Teks
Bucher, Chris, author
John Wiley & Sons, 2012
Buku Teks