edited by John W. Jones, Brian D. Steffy, Douglas W. Bray
Lexington Books, 1991
Buku Referensi
Martocchio, Joseph J., author
McGraw-Hill/Irwin, 2014
Buku Teks
Cascio, Wayne F., author
Prentice-Hall, 1998
Buku Teks
Smith, Shawn, author
Amacom, 2011
Buku Teks
Smith, Shawn, author
American Management Association;, 2011
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