APA (7 वां संस्करण) प्रशस्ति पत्र

Sadongdong, M. A. (2021). PH hits milestone with 4M vaccine doses administered nationwide. Manila Bulletin.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Sadongdong, Martin A. "PH Hits Milestone with 4M Vaccine Doses Administered Nationwide." Manila Bulletin 2021.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Sadongdong, Martin A. "PH Hits Milestone with 4M Vaccine Doses Administered Nationwide." Manila Bulletin, 2021.