(2021). Children under 16 to wait longer for vaccine - WHO. Manila Bulletin.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र"Children Under 16 to Wait Longer for Vaccine - WHO." Manila Bulletin 2021.
एमएलए (9वां संस्करण) प्रशस्ति पत्र"Children Under 16 to Wait Longer for Vaccine - WHO." Manila Bulletin, 2021.
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