Cita APA (7th ed.)

Chipongian, L. C. (2003). BIR expands paperless tax system registration. Manila Bulletin.

Cita Chicago (17th ed.)

Chipongian, Lee C. "BIR Expands Paperless Tax System Registration." Manila Bulletin 2003.

Cita MLA (9th ed.)

Chipongian, Lee C. "BIR Expands Paperless Tax System Registration." Manila Bulletin, 2003.