Flores, H. (2022). IATF improves retroactive testing, quarantine for international arrivals. Philippine Star.
Chicago-viite (17. p.)Flores, Helen. "IATF Improves Retroactive Testing, Quarantine for International Arrivals." Philippine Star 2022.
MLA-viite (9. p.)Flores, Helen. "IATF Improves Retroactive Testing, Quarantine for International Arrivals." Philippine Star, 2022.
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