[The Essence of the Sancai Sword Technique]. Chen Longchao. Scanned version 139 pages.pdf

Sancai Fa Secret

Sancai Numerical Divine Forecasting

7 kinds of Su Jingjie, 64 volumes edited by Jiao Hong. Bi Sancai, Ming Wanli 25th year

Sancai Shiwei’s 100-volume old banknote