↑Newly discovered Old Turkic runic inscription of the Ulaanchuluut Mountain (Red Mountain) from the Central Mongolia On the basis of the Mongol-Japanese International Epigraphical Expedition in August 2018, Osawa Takashi
↑David Prager Branner, (2006), The Chinese Rime Tables: Linguistic philosophy and historical-comparative phonology
↑Empires, Diplomacy, and Frontiers. (2018). In N. Di Cosmo & M. Maas (Eds.), Empires and Exchanges in Eurasian Late Antiquity: Rome, China, Iran, and the Steppe, ca. 250–750 (pp. 269-418). Cambridge: Cambridge University Press. "...some scholars see this practice as amounting to a state religion, 'Tengrism', in which the ruling Ashina family gained legitimacy through its support from Tengri."
↑Sigfried J. de Laet, Ahmad Hasan Dani, Jose Luis Lorenzo, Richard B. Nunoo
Routledge, 1994, History of Humanity, p. 56
↑Elena Vladimirovna Boĭkova, R. B. Rybakov, Kinship in the Altaic World: Proceedings of the 48th Permanent International Altaistic Conference, Moscow 10–15 July 2005, Otto Harrassowitz Verlag, 2006, ISBN978-3-447-05416-4, p. 225.
↑Anatoly Michailovich Khazanov, Nomads and the Outside World, Univ of Wisconsin Press, 1984, ISBN978-0-299-14284-1, p. 256.
↑András Róna-Tas, An introduction to Turkology, Universitas Szegediensis de Attila József Nominata, 1991, p. 29.
↑Old Turkic: 𐱅𐰇𐰼𐰜:𐰃𐰠, romanized:Türük el, har.'Negara bangsa Turk'code: otk is deprecated [4] Hanzi:後突厥; Pinyin:Hòu Tūjué, dikenal sebagai negara Turk Bilge Qaghan (Old Turkic: 𐱅𐰇𐰼𐰝:𐰋𐰃𐰠𐰏𐰀:𐰴𐰍𐰣:𐰃𐰠𐰭𐰀, romanized:Türük Bilgä Qağan elicode: otk is deprecated ) dalam inskripsi Bain Tsokto[5]