Mendis, Vernon LB (1981). Currents of Asian History. University of Michigan: Lake House Investments. p. 389. Archived from the original on 27 September 2021. Retrieved 18 October 2020.
Eberhard, Wolfram (1977). A History of China. University of California Press. p. 239. ISBN9780520032682. Archived from the original on 27 September 2021. Retrieved 18 October 2020.
Tudisco, AJ (1967). Asia Emerges. University of California: Diablo Press. p. 316. Archived from the original on 27 September 2021. Retrieved 18 October 2020.
Enkhbold, Enerelt (2019). "The role of the ortoq in the Mongol Empire in forming business partnerships". Central Asian Survey. 38 (4): 531–547. doi:10.1080/02634937.2019.1652799. S2CID203044817.
Haw 2013, pp. 361–371. Haw, Stephen G. (2013). "The deaths of two Khaghans: a comparison of events in 1242 and 1260". Bulletin of the School of Oriental and African Studies, University of London. 76 (3): 361–371. doi:10.1017/S0041977X13000475. JSTOR24692275.
Haw 2013, pp. 361–371. Haw, Stephen G. (2013). "The deaths of two Khaghans: a comparison of events in 1242 and 1260". Bulletin of the School of Oriental and African Studies, University of London. 76 (3): 361–371. doi:10.1017/S0041977X13000475. JSTOR24692275.
Enkhbold, Enerelt (2019). "The role of the ortoq in the Mongol Empire in forming business partnerships". Central Asian Survey. 38 (4): 531–547. doi:10.1080/02634937.2019.1652799. S2CID203044817.
Mendis, Vernon LB (1981). Currents of Asian History. University of Michigan: Lake House Investments. p. 389. Archived from the original on 27 September 2021. Retrieved 18 October 2020.
Eberhard, Wolfram (1977). A History of China. University of California Press. p. 239. ISBN9780520032682. Archived from the original on 27 September 2021. Retrieved 18 October 2020.
Tudisco, AJ (1967). Asia Emerges. University of California: Diablo Press. p. 316. Archived from the original on 27 September 2021. Retrieved 18 October 2020.