"Uriyangqad, which is the plural form of Uriyangqan, itself originally a plural of Uriyangqai." KRUEGER, John (1977). Tuvan Manual. p. 10. Which quotes from Henry Serruy's "The Mongols in China during the Hung-wu Period", Melanges chinois et bouddhiques, vol 11. pp. 282–283, Brussels 1959.
britannica.com
"Tyvan | people". Encyclopedia Britannica (به انگلیسی). Retrieved 2020-05-31.
