Santos, R. A. (2005). Making customer connection and making it stick. Manila Times.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSantos, Rafael Alfredo. "Making Customer Connection and Making It Stick." Manila Times 2005.
एमएलए (9वां संस्करण) प्रशस्ति पत्रSantos, Rafael Alfredo. "Making Customer Connection and Making It Stick." Manila Times, 2005.
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