Kogel, Jessica Elzea (2006). "Lithium". Industrial minerals & rocks: commodities, markets, and uses. Littleton, Colo.: Society for Mining, Metallurgy, and Exploration. p. 599. ISBN978-0-87335-233-8.
Zarkasho and Zarkashan may be the same location, although a search on Wikimapia reveals two locations with the name Zarkashan within 20 km of this location.