Unite, B. K. (2021). Concepcion, OCTA recommend booster after 4 months. Manila Bulletin.
Cita Chicago (17th ed.)Unite, Betheena Kae. "Concepcion, OCTA Recommend Booster After 4 Months." Manila Bulletin 2021.
Cita MLA (9th ed.)Unite, Betheena Kae. "Concepcion, OCTA Recommend Booster After 4 Months." Manila Bulletin, 2021.
Atenció: Aquestes cites poden no estar 100% correctes.