We use the blue cover of Advanced Mathematics published by Higher Education Press, which was published by Tongji University, Tianjin University, Jilin University and a university at the same time. The topics of these two textbooks are very targeted and classic. Moreover, the after-school guidance in each chapter is very good.

Then, you can buy a series of textbooks from Guangming Publishing House, which are upgraded. There are many real questions and complete sets of exercises in the book Advanced Mathematics. The disadvantage is that there are no answers to the chapter exercises.