Westing, John Howard
Industrial purchasing : buying for industry and budgetary institutions
John Wiley & Sons, 1956
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Robinson, Patrick J.
Industrial buying and creative marketing / Patrick J. Robinson, Charles W. Faris, Yoram Wind
Allyn & Bacon, Inc., 1967
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International marketing and purchasing of industrial goods : an interaction approach / editor, Hakan Hakansson
John Wiley & Sons, 1982
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Sellars III, David
Role playing the principles of selling/ David Sellars III
The Dryden Press, 1992
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Rodgers, Mark
Accelerate the sale : kick-start your personal selling style to close more sales, faster
McGraw-Hill , 2011
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