Valenti, Diane, author
American Management Association, 2009
eBooks
Hodell, Chuck, author
[American Society for Training and Development Press, American Society for Training and Development Press], 2005
eBooks
Fraenkel, Jack R., 1932-2014, author
McGraw-Hill, 2012
Buku Teks
Fraenkel, Jack R., 1932-2014, author
McGraw-Hill, 1993
Buku Teks
Fraenkel, Jack R., 1932-2014, author
McGraw-Hill, 2008
Buku Teks