APA (7 वां संस्करण) प्रशस्ति पत्र

San Juan, A. D. (2022). COVID vax certificates of 4 more countries recognized. Manila Bulletin.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

San Juan, Alexandria Dennise. "COVID Vax Certificates of 4 More Countries Recognized." Manila Bulletin 2022.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

San Juan, Alexandria Dennise. "COVID Vax Certificates of 4 More Countries Recognized." Manila Bulletin, 2022.