Burgonio, T. (2002). PNP asked: Why are retirables still around? Philippine Daily Inquirer.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBurgonio, T.J. "PNP Asked: Why Are Retirables Still Around?" Philippine Daily Inquirer 2002.
एमएलए (9वां संस्करण) प्रशस्ति पत्रBurgonio, T.J. "PNP Asked: Why Are Retirables Still Around?" Philippine Daily Inquirer, 2002.
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