(2021). Filipino-created vaccine queue calculator online app launched. Manila Bulletin.
Cita Chicago (17th ed.)"Filipino-created Vaccine Queue Calculator Online App Launched." Manila Bulletin 2021.
Cita MLA (9th ed.)"Filipino-created Vaccine Queue Calculator Online App Launched." Manila Bulletin, 2021.
Atenció: Aquestes cites poden no estar 100% correctes.