Cita APA

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

Citación estilo Chicago

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

Cita MLA

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

Warning: These citations may not always be 100% accurate.