Pyzdek, Thomas
McGraw-Hill, 2003
Buku Referensi
edited by Mark G. Popovich
Jossey-Bass, 1998
Buku Teks
Haines, Stephen G.
HRD Press, 1998
Buku Teks
Stewart, G. Bennett
N.Y. : HarperBusiness, 1991
Buku Teks
Galbraith, Jay R.
[American Management Association, ], 2002
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