APA (7 वां संस्करण) प्रशस्ति पत्र

Geducos, A. C. B. (2020). Duterte: PH to buy cheapest COVID-19 vaccine. Manila Bulletin.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Geducos, Argyll Cyrus B. "Duterte: PH to Buy Cheapest COVID-19 Vaccine." Manila Bulletin 2020.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Geducos, Argyll Cyrus B. "Duterte: PH to Buy Cheapest COVID-19 Vaccine." Manila Bulletin, 2020.