APA (7 वां संस्करण) प्रशस्ति पत्र

Frias, B. P. (1999). 2 Filipinos featured in Aussie stamps. Philippine Daily Inquirer.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Frias, Beth Pango. "2 Filipinos Featured in Aussie Stamps." Philippine Daily Inquirer 1999.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Frias, Beth Pango. "2 Filipinos Featured in Aussie Stamps." Philippine Daily Inquirer, 1999.