Campbell, A. (April 1848). "Itinerary from Phari in Thibet to Lassa, with appended Routes from Darjeeling to Phari". Journal of the Asiatic Society of Bengal: 274–275 – via archive.org.: "The principal town in the neighbourhood of Khari [Phari] is Rinchingong [Rinchengang], a large mart, two marches east of Choombi. It belongs to Tibet. Here the people of Bootan, Sikim and Tibet meet to trade."