Atienza, C. L. Booster shots may be necessary to raise immunity levels vs COVID-19 - expert. Manila Bulletin.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रAtienza, Charissa Luci. "Booster Shots May Be Necessary to Raise Immunity Levels Vs COVID-19 - Expert." Manila Bulletin .
एमएलए (9वां संस्करण) प्रशस्ति पत्रAtienza, Charissa Luci. "Booster Shots May Be Necessary to Raise Immunity Levels Vs COVID-19 - Expert." Manila Bulletin, .
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