Churchill, Gilbert A.
Basic marketing research
The Dryden Press, 1996
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Churchill, Gilbert A.
Marketing research : methodological foundations
Thomson, 2005
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Crisp, Richard D.
Marketing research
McGraw-Hill, 1957
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Aaker, David A.
Marketing research
John Wiley & Sons, 2000
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Malhotra, Naresh K.
Basic marketing research : a decision-making approach
Prentice-Hall, 2006
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