2. "Differential Geometry of Curves and Surfaces", by multi-card module;
3. Differential Geometry by Wu Daren;
4. Differential geometry, by Huang;
5. 100 cases of differential geometry, by Jiang and Huang;
6. Xiong Jincheng's lecture on point set topology;
7. Basic Topology, by You Ye Cheng;
8, "Curiosity of Topology", author: Baljiaski, Efremovich;
9. Elementary Differential Geometry, by Chen;
10, manifold topology, Su Jingcun.