(2002). Communing with nature at the foot at Mt. Makiling. Philippine Daily Inquirer.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र"Communing with Nature at the Foot at Mt. Makiling." Philippine Daily Inquirer 2002.
एमएलए (9वां संस्करण) प्रशस्ति पत्र"Communing with Nature at the Foot at Mt. Makiling." Philippine Daily Inquirer, 2002.
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