1. Freund's Musical Weekly, Vol. 29, no. 12, April 26, 1900. New York, NY : Privately Published, 117. Book Online
2. Coin: 26811 Ren Zong (仁宗) Li Ren Xiao (李仁孝) (1124 to 1193), 1 Cash Coin Physical Special Collections Coin 26811 Available
3. Coin: 26809 Ren Zong (仁宗) Li Ren Xiao (李仁孝) (1124 to 1193), 1 Cash Coin Physical Special Collections Coin 26809 Available
4. Coin: 26810 Ren Zong (仁宗) Li Ren Xiao (李仁孝) (1124 to 1193), 1 Cash Coin Physical Special Collections Coin 26810 Available