(2005). Corpus urged to help manage quarrying. Philippine Daily Inquirer.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र"Corpus Urged to Help Manage Quarrying." Philippine Daily Inquirer 2005.
एमएलए (9वां संस्करण) प्रशस्ति पत्र"Corpus Urged to Help Manage Quarrying." Philippine Daily Inquirer, 2005.
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