A Maranao dictionary
compiled by Howard P. McKaughan, Batua A. Macaraya
University of Hawaii Press, 1967
 Buku Referensi
McKaughan, Howard P.
The Inflection and syntax of Maranao verbs
Institute of National Language, 1958
 Buku Teks
Lyons, John
Language and linguistics: an introduction/John Lyons
New York Cambridge University Press 1992,
 Buku Teks
Sapir, Edward
Sprache einfuhrung in das wesen der sprache
Munchen Heuber 1961
 Buku Teks
Jakobson, Roman
Grundlagen der sprache von und
Berlin Akademic-Verlag 1960
 Buku Teks