Mananquil, M. M. (2001). Ifugao "hudhud" chants added to Unesco list of world masterpieces. Philippine Star.
Tohutoru Kātū Chicago (17th ed.)Mananquil, Millet M. "Ifugao "Hudhud" Chants Added to Unesco List of World Masterpieces." Philippine Star 2001.
Tohutoro MLA (9th ed.)Mananquil, Millet M. "Ifugao "Hudhud" Chants Added to Unesco List of World Masterpieces." Philippine Star, 2001.
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