Lua APA (7ú heag.)

Calica, M. A. L. (2005). GMA vows to break oil cartel. Philippine Star.

Lua i Stíl Chicago (17ú heag.)

Calica, Ma. Aurea L. "GMA Vows to Break Oil Cartel." Philippine Star 2005.

Lua MLA (9ú heag.)

Calica, Ma. Aurea L. "GMA Vows to Break Oil Cartel." Philippine Star, 2005.

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