Gappi, R. (2004). UP dumps national artist, father of Philippine pharmacy: Rizal artist restores worn-out sculpture. Philippine Collegian.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रGappi, Richard. "UP Dumps National Artist, Father of Philippine Pharmacy: Rizal Artist Restores Worn-out Sculpture." Philippine Collegian 2004.
एमएलए (9वां संस्करण) प्रशस्ति पत्रGappi, Richard. "UP Dumps National Artist, Father of Philippine Pharmacy: Rizal Artist Restores Worn-out Sculpture." Philippine Collegian, 2004.
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