Helbling, J., & Schult, V. (2004). Mangyan survival strategies. Philippine Star.
Lua i Stíl Chicago (17ú heag.)Helbling, Jurg, agus Volker Schult. "Mangyan Survival Strategies." Philippine Star 2004.
Lua MLA (9ú heag.)Helbling, Jurg, agus Volker Schult. "Mangyan Survival Strategies." Philippine Star, 2004.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.