WERTENBROCH K. (2001). MEASURING CONSUMER WILLINGNESS TO PAY AT THE POINT OF PURCHASE. MARKETING SERVICE INSTITUTE.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWERTENBROCH K. MEASURING CONSUMER WILLINGNESS TO PAY AT THE POINT OF PURCHASE. MASSACHUSSETS: MARKETING SERVICE INSTITUTE, 2001.
एमएलए (9वां संस्करण) प्रशस्ति पत्रWERTENBROCH K. MEASURING CONSUMER WILLINGNESS TO PAY AT THE POINT OF PURCHASE. MARKETING SERVICE INSTITUTE, 2001.
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