(1999). Thursday Evening Concert Series (Alegria Ferrer, Jonathan Badon and Nita A. Quinto.). UP College of Music.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रThursday Evening Concert Series (Alegria Ferrer, Jonathan Badon and Nita A. Quinto.). Quezon City: UP College of Music, 1999.
एमएलए (9वां संस्करण) प्रशस्ति पत्रThursday Evening Concert Series (Alegria Ferrer, Jonathan Badon and Nita A. Quinto.). UP College of Music, 1999.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.