Perez, R. P. (1999). Lor Calma: Young sculptor in his 70's. Philippine Daily Inquirer.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPerez, Rod Paras. "Lor Calma: Young Sculptor in His 70's." Philippine Daily Inquirer 1999.
एमएलए (9वां संस्करण) प्रशस्ति पत्रPerez, Rod Paras. "Lor Calma: Young Sculptor in His 70's." Philippine Daily Inquirer, 1999.
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