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READINGS
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Heiman, Stephen E. and Sanchez, Diane with Tuleja, Tad. The New Strategic Selling. Warner Books, New York, 1998
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Peoples, David A. Selling to the Top. John Wiley & Sons, Inc. New York, 1993
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Rosenblatt, Nate. Sales Letter Works. Round Lake Publishing, Connecticut, 1990 |
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