APA (7 वां संस्करण) प्रशस्ति पत्र

(2009). Villar dominates SWS survey; Erap up to No. 2. Philippine Daily Inquirer.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

"Villar Dominates SWS Survey; Erap Up to No. 2." Philippine Daily Inquirer 2009.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

"Villar Dominates SWS Survey; Erap Up to No. 2." Philippine Daily Inquirer, 2009.