Baron, Eric, author
Wiley, 2013
Buku Teks
Schwartz, Alvin, author
Harper Trophy, 1991
Buku Teks
Arthur, Lisa, author
Wiley, 2014
Buku Teks
Rosenthal, Norman E., author
Citadel Press, 2002
Buku Teks
Osborne, Starr C., author
[American Management Association;, ], 2010
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