* Gordon, Raymond G., Jr. (ed.), 2005. Ethnologue: Languages of the World, Fifteenth edition. Dalles, Tex.: SIL International. Online versió: http://www.ethnologue.com/. | * Gordon, Raymond G., Jr. (ed.), 2005. Ethnologue: Languages of the World, Fifteenth edition. Dalles, Tex.: SIL International. Online versió: http://www.ethnologue.com/. |