“Drip Sky Fengshui” by Zhang Shaojin, Han Jiying and Zhang Quanfu 96 pages double-sided

Wang Tingzhi’s “Alchemy Jiyi”

The ancient book “Guaxiang Jiyi” of Yixue, page 80

Jiyin Gangmu

Jiyin Compendium Volume 14.pdf, an ancient book of traditional Chinese medicine,——