Echeminada, P. (2008). Laughing, red-faced monkeys spotted in Mindanao wild. Philippine Star.
Lua i Stíl Chicago (17ú heag.)Echeminada, Perseus. "Laughing, Red-faced Monkeys Spotted in Mindanao Wild." Philippine Star 2008.
Lua MLA (9ú heag.)Echeminada, Perseus. "Laughing, Red-faced Monkeys Spotted in Mindanao Wild." Philippine Star, 2008.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.