Na styke kontinentov i t︠s︡ivilizat︠s︡iĭ-- : iz opyta obrazovanii︠a︡ i raspada imperiĭ X-XVI vv. /
Muslimov, I. B.(Ilʹi︠a︡z Bulatovich)
Moskva : "INSAN",
1996.
Includes bibliographical references (p. 759-764).
Bulgars (Turkic people)
Mongols
Golden Horde