සැකිල්ල:Ethnologue17
Lewis, M. Paul; Gary F. Simons; Charles D. Fennig, eds. (2013). Ethnologue: Languages of the World (17th ed.). Dallas, Texas: SIL International.
Lewis, M. Paul; Gary F. Simons; Charles D. Fennig, eds. (2013). Ethnologue: Languages of the World (17th ed.). Dallas, Texas: SIL International.