Zikmund, W. G. (2008). Business research methods. Cengage Learbubg.
Chicago Style (17. basım) AtıfZikmund, William G. Business Research Methods. New Delhi: Cengage Learbubg, 2008.
MLA (9th ed.) AtıfZikmund, William G. Business Research Methods. Cengage Learbubg, 2008.
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