Mathematics for postgraduate entrance examination includes advanced mathematics, probability theory and mathematical statistics, and linear algebra.
Tongji Edition and Sichuan University Edition are widely used in advanced mathematics, and 1-4 has both contents. The probability is generally Zhejiang University. There are many line generations, basically all versions can be used, and the content is not much different, with the main content.
The above textbooks can be bought in the examination bookstore. If you can't buy it, you can send it by mail from the school press.
I hope it helps.