Emery, Vince
Dinastindo , 1997
Buku Teks
Emery, Vince
Coriolis Group Books, 1995
Buku Teks
edited by Mary J. Cronin
Harvard Business School Press , 1996
Buku Teks
Eisenmann, Thomas R., author
McGraw-Hill Irwin, 2002
Buku Teks
Hartley, Darin, author
American Society for Training & Development, 2010
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