Qian que ju lei shu (潛確居類書); 2

Chen, Renxi, 1581-1636 (陳仁錫)

He luo li shu (河洛理數)

Chen, Tuan, 885-989 (陳摶); Shao, Yong, 1011-1077 (邵雍); Shi, Yingxuan, Ming (史應選)