Villanueva, S. J. (1993). Creatures of Philippine lower mythology.
Lua i Stíl Chicago (17ú heag.)Villanueva, Samuel J. Creatures of Philippine Lower Mythology. Thesis (BFA)--University of the Philippines Diliman, 1993.
Lua MLA (9ú heag.)Villanueva, Samuel J. Creatures of Philippine Lower Mythology. 1993.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.