Crisostomo, S. (2006). Caught in the 'Ring of Fire', RP is a disaster-prone country. Philippine Star.
Lua i Stíl Chicago (17ú heag.)Crisostomo, Sheila. "Caught in the 'Ring of Fire', RP Is a Disaster-prone Country." Philippine Star 2006.
Lua MLA (9ú heag.)Crisostomo, Sheila. "Caught in the 'Ring of Fire', RP Is a Disaster-prone Country." Philippine Star, 2006.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.