Bloomberg. (2020). Moment of truth for COVID-19 vaccines may be known this month. Manila Bulletin.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBloomberg. "Moment of Truth for COVID-19 Vaccines May Be Known This Month." Manila Bulletin 2020.
एमएलए (9वां संस्करण) प्रशस्ति पत्रBloomberg. "Moment of Truth for COVID-19 Vaccines May Be Known This Month." Manila Bulletin, 2020.
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