APA (7 वां संस्करण) प्रशस्ति पत्र

Ong, E. D. (2002). RP's language advantage slowly slipping away, notes call center leader. Manila Bulletin.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Ong, Edison Dy. "RP's Language Advantage Slowly Slipping Away, Notes Call Center Leader." Manila Bulletin 2002.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Ong, Edison Dy. "RP's Language Advantage Slowly Slipping Away, Notes Call Center Leader." Manila Bulletin, 2002.