Xu Dai

Yi guo liang zhi

Wan chuan ji

Shandong sheng ren kou, zi yuan, huan jing yu nong ye chi xu fa zhan

Xian dai guo fang da dian

Sheng shi lang yan

C xing bao wei

Huanchuan ji

對數簡法; 續對數簡法

浣川集

音分古義