APA (7 वां संस्करण) प्रशस्ति पत्र

Papa, A. V. (2009). DENR: Improper waste disposal still rampant. Philippine Daily Inquirer.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Papa, Alcuin V. "DENR: Improper Waste Disposal Still Rampant." Philippine Daily Inquirer 2009.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Papa, Alcuin V. "DENR: Improper Waste Disposal Still Rampant." Philippine Daily Inquirer, 2009.