Lua APA (7ú heag.)

Katigbak, A. F. (2003). GMA honors Yuchengco with Order of Lakandula. Philippine Star.

Lua i Stíl Chicago (17ú heag.)

Katigbak, Antonio F. "GMA Honors Yuchengco with Order of Lakandula." Philippine Star 2003.

Lua MLA (9ú heag.)

Katigbak, Antonio F. "GMA Honors Yuchengco with Order of Lakandula." Philippine Star, 2003.

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