Llamzon, T. A. (1978). Handbook of Phil. language groups. Ateneo de Manila University Press.
Lua i Stíl Chicago (17ú heag.)Llamzon, Teodoro A. Handbook of Phil. Language Groups. Quezon City: Ateneo de Manila University Press, 1978.
Lua MLA (9ú heag.)Llamzon, Teodoro A. Handbook of Phil. Language Groups. Ateneo de Manila University Press, 1978.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.