Sadongdong, M. A. (2021). PH receives 400,000 more vaccine donation from China. Manila Bulletin.
Lua i Stíl Chicago (17ú heag.)Sadongdong, Martin A. "PH Receives 400,000 More Vaccine Donation from China." Manila Bulletin 2021.
Lua MLA (9ú heag.)Sadongdong, Martin A. "PH Receives 400,000 More Vaccine Donation from China." Manila Bulletin, 2021.
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