Oshry, Barry, author
Berrett-Koehler Publishers, Inc., 2007
Buku Teks
Tosi, Henry L.
John Wiley & Sons, 1977
Buku Teks
Kreitner, Robert, author
McGrw-Hill , 2001
Buku Teks
Carroll, Stephen J., author
John Wiley & Sons, 1977
Buku Teks
Robbins, Stephen P., author
Pearson education, 2015
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