There is no business school in Fudan, only the School of Economics and the School of Management. Mathematics examination for graduate students majoring in economics is compulsory, generally taking three or four courses. If you have time, you'd better read some books on the basic stage of undergraduate major in the Department of World Economics, School of Economics, Fudan University. I remember that it seems that the micro-level is Pindick's, and the macro-level seems to be compiled by Dean Yuan Zhigang. The comparative basis of people with high numbers (calculus, line generation, probability). Fudan's own work is not difficult. These are all necessary for you who are interdisciplinary. In order to prepare for your future re-examination oral test, I suggest you have time to read some Advanced English in International Trade by Mr. Lohan. In fact, these books can be bought in Fudan University Press opposite Fudan Jingyuan. Of course, there are also many bookstores in Handan campus. Some are 15% off.