APA aipamena

Gatdula, D. (2001). Napocor, GSIS feud heats up. Philippine Star.

Chicago Style aipamena

Gatdula, Donnabelle. "Napocor, GSIS Feud Heats Up." Philippine Star 2001.

MLA aipamena

Gatdula, Donnabelle. "Napocor, GSIS Feud Heats Up." Philippine Star, 2001.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.