Turban, Efraim, 1930-, author
John Wiley & Sons, 2015
Buku Teks
Earl, Michael J., author
Prentice-Hall, 1989
Buku Teks
Elbert, Bruce R., author
Artech House , 1992
Buku Teks
edited by Blaise Cronin
ASLIB, 1985
Buku Teks
Hoque, Faisal, Uthor
[American Management Association, ], 2011
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