Sharma, D. (1999). marketing research, principles, Applications and cases (2nd.). Sultan Chand & Sons.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSharma, D. Marketing Research, Principles, Applications and Cases. 2nd. New Delhi: Sultan Chand & Sons, 1999.
एमएलए (9वां संस्करण) प्रशस्ति पत्रSharma, D. Marketing Research, Principles, Applications and Cases. 2nd. Sultan Chand & Sons, 1999.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.