Grimes, Barbara F. and Joseph E. Grimes, eds. Ethnologue: Languages of the World. 14th ed. Dallas, Tex.: SIL International, 2000. 2 vols.

Grimes, Barbara F. and Joseph E. Grimes, eds. Ethnologue: Languages of the World. 14th ed. Dallas, Tex.: SIL International, 2000. 2 vols.