Petech 1990, str.7–8 Petech, Luciano (1990). Central Tibet and The Mongols. Serie Orientale Roma. Vol.65. Rome: Instituto Italiano per il Medio ed Estremo Oriente. ASINB0006F23TK.
Van Schaik 2011, str.21, "Ljudje iz vzhodnih regij Kham in Amdo so se vedno identificirali kot Khampi in Amdowi in ne kot Tibetanci ter so bili včasih tesneje povezani s svojimi kitajskimi sosedi kot z osrednjim Tibetom." Van Schaik, Sam (2011). Tibet: A History. New Haven, CT: Yale University Press. ISBN978-0-300-15404-7.
Van Schaik 2011, str.76, "the Mongol court took a direct interest in how Tibet was run ... at the Mongol capital there was a Department for Buddhist and Tibetan Affairs." Van Schaik, Sam (2011). Tibet: A History. New Haven, CT: Yale University Press. ISBN978-0-300-15404-7.
Weiner 2012, str.398–405, 427 Weiner, Benno Ryan (2012). The Chinese Revolution on the Tibetan Frontier: State Building, National Integration and Socialist Transformation, Zeku (Tsékhok) County, 1953-1958. 2012 Dissertation (diplomska naloga). Columbia University. str.1–470. doi:10.7916/D81260QQ. hdl:10022/AC:P:14943.
Weiner 2012, str.398–405, 427 Weiner, Benno Ryan (2012). The Chinese Revolution on the Tibetan Frontier: State Building, National Integration and Socialist Transformation, Zeku (Tsékhok) County, 1953-1958. 2012 Dissertation (diplomska naloga). Columbia University. str.1–470. doi:10.7916/D81260QQ. hdl:10022/AC:P:14943.