Luo Guanzhong, Three Kingdoms. A Historical Novel, translated from the Chinese by Moss Roberts, University of California Press 1999, str. 13 [1](ang.)
Cho-yün Hsü, Zhuoyun Xu, Jack L. Dull, Han agriculture: the formation of early Chinese agrarian economy, 206 B.C.-A.D. 220, vol. II, University of Washington Press 1980, str. 204 [2](ang.)
