Lua APA (7ú heag.)

Diaz, J., & Calica, A. (2002). Cellphone, text messaging tax to be killed in House. Philippine Star.

Lua i Stíl Chicago (17ú heag.)

Diaz, Jess, agus Aurea Calica. "Cellphone, Text Messaging Tax to Be Killed in House." Philippine Star 2002.

Lua MLA (9ú heag.)

Diaz, Jess, agus Aurea Calica. "Cellphone, Text Messaging Tax to Be Killed in House." Philippine Star, 2002.

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