Geography book “Zhushen Zhenjing” written by Song Guoshi Wu Jingluan, page 116

“Yu Zhaoding Zhenjing Vernacular Example Problem Explanation” 110 pages double-sided edition

(Jin) Guo Pu’s “Illustrated Chinese Studies 10-Illustrated Yuzhaoding Zhenjing”

Yuzhaoding Zhenjing vernacular example problem solution.pdf

Chongxu Zhide Zhenjing. Volume 18. Liezi. Notes by Zhang Zhan.pdf

Luban Dingguo Zhenjing Damujing