Ewald, Helen Rothschild
Prentice Hall International, 1997
Buku Teks
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McGraw-Hill Irwin, 2007
Buku Teks
Budi Djatmiko, author
STEMBI-Bandung Business School, 2011
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Thill, John V., author
McGraw-Hill, 1993
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Moll, Melanie, author
[Springer, ], 2012
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