Lua APA (7ú heag.)

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

Lua i Stíl Chicago (17ú heag.)

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

Lua MLA (9ú heag.)

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

Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.