GUPTA S.L. (2002). CASES & PROBLEMS IN MARKETING RESEARCH. HIMALAYA PUB.
Chicago-čujuhus (17. p.)GUPTA S.L. CASES & PROBLEMS IN MARKETING RESEARCH. MUMBAI: HIMALAYA PUB, 2002.
MLA-čujuhus (9. p.)GUPTA S.L. CASES & PROBLEMS IN MARKETING RESEARCH. HIMALAYA PUB, 2002.
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