Page 161 of Huang Yiyuan’s “Six Yaos Dispelling the Secrets of Heaven”

Liu Zhenming “Exploring the Secrets of the Six Yaos”

Zhang De’s “Six Yaos of True Life”

Hexagrams and Yaos

The Ancient Book of Six Yaos “Achilles Proof”

Zhang Chengwu’s “The Application of Four Pillars and Six Yaos”

Lu Guoshanren “Introduction to Improvement of Six Yaos”

Xu Xin’s “Introduction and Improvement of Six Yaos (Second Edition)”

Sun Haiyi’s “Application of the Theory of Analogy in Six Yaos”

Yuan Weiming “Six Yaos Returning to the Truth-Five Luck, Six Qi Breaks and Six Yaos Advanced Lecture Notes”

Jia Bingran’s “Six Yaos Washing the Essence”

“The Complete Book of the Six Yaos of the Blind School [Page 131]”.pdf

The Mystery of the Six Yaos and the Mysteries of the Old Man of Leisurely Clouds (Revised Edition)

Mu Yan Qiushui’s “Six Yaos Watching Ghosts and Gods” Internal Materials.pdf