Shanxi tong zhi (陝西通志); 9

Liu, Yuyi, um 1712 (劉於義); Shen, Qingya (沈青崖)

Ge zhi jing yuan (格致鏡原); 4

Chen, Yuanlong, 1652-1736 (陳元龍, 1652-1736)

Shanxi tong zhi (陝西通志); 4

Liu, Yuyi, um 1712 (劉於義); Shen, Qingya (沈青崖)

Ge zhi jing yuan (格致鏡原); 3

Chen, Yuanlong, 1652-1736 (陳元龍, 1652-1736)

Shanxi tong zhi (陝西通志); 6

Liu, Yuyi, um 1712 (劉於義); Shen, Qingya (沈青崖)

Shanxi tong zhi (陝西通志); 10

Liu, Yuyi, um 1712 (劉於義); Shen, Qingya (沈青崖)