Não informado. (2005). Marketing times. Sales and Marketing Executives International.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Marketing Times. New York: Sales and Marketing Executives International, 2005.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Marketing Times. Sales and Marketing Executives International, 2005.
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