Kaufman, K. (2002). Pag-IBIG: Providing shelter for every Filipino family. Manila Times.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रKaufman, Karl. "Pag-IBIG: Providing Shelter for Every Filipino Family." Manila Times 2002.
एमएलए (9वां संस्करण) प्रशस्ति पत्रKaufman, Karl. "Pag-IBIG: Providing Shelter for Every Filipino Family." Manila Times, 2002.
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