Halsey, George D., author
Rineka Cipta, 1994
Buku Teks
Erich P. Prien, editor
Pfeiffer, 2009
Buku Teks
Moekijat, author
Alumni, 1987
Buku Teks
Moekijat, author
Alumni, 1974
Buku Teks
Franklin, Maren, author
American Society for Training and Development Press, 2005
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