Manahan, R. I. D. (2012). Supporters wear purple and black. Manila Times.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रManahan, Ruben IV D. "Supporters Wear Purple and Black." Manila Times 2012.
एमएलए (9वां संस्करण) प्रशस्ति पत्रManahan, Ruben IV D. "Supporters Wear Purple and Black." Manila Times, 2012.
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