Cita APA (7th ed.)

Tulfo, E. T. (2019). Smartmatic troubles, Noynoy's Legacy. IN Opinion [column]. Manila Standard.

Cita Chicago (17th ed.)

Tulfo, Erwin T. "Smartmatic Troubles, Noynoy's Legacy. IN Opinion [column]." Manila Standard 2019.

Cita MLA (9th ed.)

Tulfo, Erwin T. "Smartmatic Troubles, Noynoy's Legacy. IN Opinion [column]." Manila Standard, 2019.