Bordadora, N. (2006). DENR chief notes entry of P518B in investments. Philippine Daily Inquirer.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBordadora, Norman. "DENR Chief Notes Entry of P518B in Investments." Philippine Daily Inquirer 2006.
एमएलए (9वां संस्करण) प्रशस्ति पत्रBordadora, Norman. "DENR Chief Notes Entry of P518B in Investments." Philippine Daily Inquirer, 2006.
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