Pil, C. (2003). The Sacred works of Ryan Cayabyab. IN Music to my ears [column]: A review. Manila Times.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPil, Celine. "The Sacred Works of Ryan Cayabyab. IN Music to My Ears [column]: A Review." Manila Times 2003.
एमएलए (9वां संस्करण) प्रशस्ति पत्रPil, Celine. "The Sacred Works of Ryan Cayabyab. IN Music to My Ears [column]: A Review." Manila Times, 2003.
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