Sadongdong, M. A. (2021). Gov't ready to vaccinate children by October - Galvez. Manila Bulletin.
Chicago-viite (17. p.)Sadongdong, Martin A. "Gov't Ready to Vaccinate Children by October - Galvez." Manila Bulletin 2021.
MLA-viite (9. p.)Sadongdong, Martin A. "Gov't Ready to Vaccinate Children by October - Galvez." Manila Bulletin, 2021.
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