Blust, Robert (1991). "The Greater Central Philippines hypothesis". Oceanic Linguistics. 30 (2): 73–129. doi:10.2307/3623084. JSTOR3623084.
glottolog.org
Hammarström, Harald; Forkel, Robert; Haspelmath, Martin, penyunting (2017). "South Mangyan". Glottolog 3.0. Jena, Germany: Max Planck Institute for the Science of Human History.