Nelson, Sandra, author
[American Management Association, ], 2008
eBooks
Ward, John, author
John Wiley & Sons, 1996
Buku Teks
Buell, Victor P., author
McGraw-Hill, 1984
Buku Teks
Hamper, Robert J.,
NTC Bussiness Book, 1992
Buku Teks
Kerin, Roger A., author
Allyn and Bacon, 1990
Buku Teks