Sumo
[también conocido como Sumo-Mayangna, Sumu, Ulwa, Ulua, Ulúa, Woolwa, Mayangna]Clasificación: Misumalpan
·con amenaza de extinción
Clasificación: Misumalpan
·con amenaza de extinción
Endangered Languages Catalogue Project. Compiled by research teams at University of Hawai'i Mānoa and Institute for Language Information and Technology (LINGUIST List) at Eastern Michigan University . (2012) ·
Ethnologue: Languages of the World, 16th Edition (2009) . (2009) · edited by M. Paul Lewis · SIL International http://www.ethnologue.com/
Theoretical and Universal Implications of Certain Verbal Entries in Dictionaries of the Misumalpan Languages . Ken Hale and Danilo Salamanca (2001) · In Making Dictionaries: Preserving indigenous Languages of the Americas edited by Frawley, Hill & Munro · University of California Press
The World Atlas of Language Structures . (2005) · edited by Bernard Comrie and David Gil and Martin Haspelmath and Matthew S. Dryer · Oxford University Press
Dhivehi (Maldivian) . Bruce D. Cain and James W. Gair (2000) · Languages of the World/Materials · Vol. 63 · München: Lincom
Miskito und Sumo ( pp. 544-578 ) . Karl Bouda (1962) · Orbis. 11
Ethnographical Survey of the Miskito and Sumu Indians of Honduras and Nicaragua . Eduard Conzemius (1932) · Bureau of American Ethnology Bulletin · Vol. 106 · Smithsonian Institution, Washington:
Notes on the Miskito and Sumu Languages of Eastern Nicaragua and Honduras ( pp. 57-115 ) . E. Conzemius (1929) · International Journal of American Linguistics. 5 (5) ·
A Lexicographic Study of Ulwa . T. M. Green (1999) ·
The Caribbean Lowland Tribes: The Mosquito, Sumo, Paya, and Jicaque ( pp. 219-230 ) . Paul Kirchhoff (1948) · In The Circum-Caribbean Tribes Handbook of South American Indians · Vol. 4 · edited by Julian H. Steward · Smithsonian Institution, Washington: Bureau of American Ethnology
La Estructura de la Lengua Sumu ( pp. 85-92 ) . S. Norwood (1987) · Boletín de Antropología Americana. 15
Diccionario Español-Sumo, Sumo-Español . Houwald, Götz von (1980) · Ministerio de Educación