1. Bartold V.V. 1963 Kirgizy. Istoricheskiy ocherk. In Sochineniya, vol. II (1). Moscow: Nauka, Gl. red. vost. lit., pp. 471–543.
2. Bichurin N.Y. (Hyacinth). 1950 Sobraniye svedeniy o narodakh, obitavshikh v Sredney Azii v drevniye vremena, vol. I. Moscow, Leningrad: Izd. AN SSSR.
3. Borovka G.I. 1927 Arkheologicheskoye obsledovaniye srednego techeniya r. Toly. In Predvaritelniye otchety lingvisticheskoy i arkheologicheskoy ekspeditsii o rabotakh, proizvedennykh v 1925 godu, vol. 2. Leningrad: Izd. AN SSSR, pp. 43–88.
4. Du Hanchao. 2014 Semigranniy pozolochenniy serebryaniy kubok. In Xianging chenghui: Caoyuan sichouzhi lu venu jinghua. Tala zhu bian (Shining Bright for Each Other: the Elite Cultural Values of the Steppe Silk Road). Hohhot: Nei menggu renmin chubanshe, pp. 175–177. (In Chinese).
5. Evtyukhova L.A. 1948 Arkheologicheskiye pamyatniki Yeniseyskikh kyrgyzov (khakasov). Abakan: [Tip. izd. “Sov. Khakasiya”].