Thomas, Wayne M.
The Sales manager's success manual
Amacom, 2008
 Buku Teks SO
Thomas, Wayne M.
The sales manager's success manual
Amacom, 2008
 eBooks
Jones, John G.
Sales management
Alexander Hamilton Institute, 1961
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Storholm, Gordon R.
Sales management
Prentice-Hall, 1982
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Still, Richard R.
Sales management
Prentice Hall International, 1988
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