NARGUNDKAR RAJENDRA. (2008). MARKETING RESEARCH: TEXT AND CASES (3rd.). TATA MCGRAW-HILL PUBLISHING COMPANY.
Chicago-viite (17. p.)NARGUNDKAR RAJENDRA. MARKETING RESEARCH: TEXT AND CASES. 3rd. NEW DELHI: TATA MCGRAW-HILL PUBLISHING COMPANY, 2008.
MLA-viite (9. p.)NARGUNDKAR RAJENDRA. MARKETING RESEARCH: TEXT AND CASES. 3rd. TATA MCGRAW-HILL PUBLISHING COMPANY, 2008.
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