Chourdhury, P. A. (1999). Basic services designed to promote self-reliance. Philippine Star.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रChourdhury, Perla Aragon. "Basic Services Designed to Promote Self-reliance." Philippine Star 1999.
एमएलए (9वां संस्करण) प्रशस्ति पत्रChourdhury, Perla Aragon. "Basic Services Designed to Promote Self-reliance." Philippine Star, 1999.
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