Geducos, A. C. B. (2022). PH recognizes vax certificates of 15 more countries. Manila Bulletin.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रGeducos, Argyll Cyrus B. "PH Recognizes Vax Certificates of 15 More Countries." Manila Bulletin 2022.
एमएलए (9वां संस्करण) प्रशस्ति पत्रGeducos, Argyll Cyrus B. "PH Recognizes Vax Certificates of 15 More Countries." Manila Bulletin, 2022.
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