Mananquil, M. M. (2001). Ifugao "hudhud" chants added to Unesco list of world masterpieces. Philippine Star.
Citazione stile Chigago Style (17a edizione)Mananquil, Millet M. "Ifugao "Hudhud" Chants Added to Unesco List of World Masterpieces." Philippine Star 2001.
Citatione MLA (9a ed.)Mananquil, Millet M. "Ifugao "Hudhud" Chants Added to Unesco List of World Masterpieces." Philippine Star, 2001.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.