Lizhi XuBooksXu Lizhi fang tan luLi dai pan li pan duJi suan zu he shu xueShu xue fang fa lun xuan jiangXu Lizhi tan zhi xue fang fa yu shu xue jiao yuHan shu bi jin di li lun yu fang faXu Lizhi tan shu xue fang fa lunAuthor data: Open Library