Colmenares, P. C. (1997). Operation smile: Changing the misfortune of deformity. Manila Bulletin.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रColmenares, Pinky Concha. "Operation Smile: Changing the Misfortune of Deformity." Manila Bulletin 1997.
एमएलए (9वां संस्करण) प्रशस्ति पत्रColmenares, Pinky Concha. "Operation Smile: Changing the Misfortune of Deformity." Manila Bulletin, 1997.
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