China's is also good! There is no need to have good textbooks in the United States-the books Mathematical Modeling Methods and Their Applications (Second Edition) and Practical Operations Research written by Han Chonggeng, which are two excellent books for learning mathematical modeling, both of which can be bought online.

In addition, if you want to learn mathematical modeling well, you need to learn mathematical software, such as matlab, lingo, c++, and you may also need drawing software, such as ps and PS, orange, and it is best to use matlab and lingo.

Among them, a book about matlab published by Tsinghua University is very good, which was written by Mary-"Matlab Mathematical Experiment and Modeling", which is closely combined with mathematical modeling and has strong practicability. Besides this, you can also find other tutorials for learning this software.

Lingo is the best software for solving linear and nonlinear equations. It is very powerful. You can find some tutorials to learn. It is a very practical software in modeling and needs to be studied well.

In addition, C++ programming and ps drawing may be used. These are all good. Everything is not good in America.