Keller, kotler
Marketing Management
Pearson Education, Inc, 2006
Buku Teks SO
Cox, William E., Jr.
Industrial marketing research
John Wiley, 1979
Buku Teks SO
Bogart, Leo ed
Current controversies in marketing research
Markham Company, 1969
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Brown, F.E.
Marketing research : a structure for decision making
Addison-Wesley, 1980
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Cox, Eli P.
Marketing research : information for decision making
Harper & Row, 1979
Buku Teks SO