Lua APA (7ú heag.)

Villanueva, M. A., & Diaz, J. (1997). Ramos on Charter change: No chance. Philippine Star.

Lua i Stíl Chicago (17ú heag.)

Villanueva, Marichu A., agus Jess Diaz. "Ramos on Charter Change: No Chance." Philippine Star 1997.

Lua MLA (9ú heag.)

Villanueva, Marichu A., agus Jess Diaz. "Ramos on Charter Change: No Chance." Philippine Star, 1997.

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