(1999). Francis Wong Agnes Barredo and Miguel Antonio Castro. UP College of Music.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रFrancis Wong Agnes Barredo and Miguel Antonio Castro. Quezon City: UP College of Music, 1999.
एमएलए (9वां संस्करण) प्रशस्ति पत्रFrancis Wong Agnes Barredo and Miguel Antonio Castro. UP College of Music, 1999.
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