AAKER, D. A. (1990). Marketing Research David A. Aaker And George S. Day. John Wiley & Sons.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रAAKER, David A. Marketing Research David A. Aaker And George S. Day. John Wiley & Sons, 1990.
एमएलए (8वां संस्करण) प्रशस्ति पत्रAAKER, David A. Marketing Research David A. Aaker And George S. Day. John Wiley & Sons, 1990.
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