APA aipamena

Ruiz, E. (2021). PSA starts online appointment system. Manila Bulletin.

Chicago Style aipamena

Ruiz, Ellalyn. "PSA Starts Online Appointment System." Manila Bulletin 2021.

MLA aipamena

Ruiz, Ellalyn. "PSA Starts Online Appointment System." Manila Bulletin, 2021.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.