Cita APA (7th ed.)

Perpeña, E. C. (2001). Improving cell phone services. Manila Times.

Cita Chicago (17th ed.)

Perpeña, Ed C. "Improving Cell Phone Services." Manila Times 2001.

Cita MLA (9th ed.)

Perpeña, Ed C. "Improving Cell Phone Services." Manila Times, 2001.