Beijing: Zhonghua Shuju (中华书局) ISBN 7-101-03336-9* Xue, Zongzheng (薛宗正) (1992) "A History of Turks" (突厥史).
Beijing: Zhonghua Shuju (中华书局) ISBN 7-101-03336-9*Xue, Zongzheng (薛宗正) (1992) "A History of the Turks" (突厥史).