سانچو:Ethnologue18
Lewis, M. Paul, Gary F. Simons, & Charles D. Fennig, ed (2015). Ethnologue: Languages of the World (18th ed.). Dallas, Texas: SIL International. http://www.ethnologue.com/18.
Lewis, M. Paul, Gary F. Simons, & Charles D. Fennig, ed (2015). Ethnologue: Languages of the World (18th ed.). Dallas, Texas: SIL International. http://www.ethnologue.com/18.
