TY  - BOOK
AU  - Xiong Bin Et Al
TI  - Mathematical Olympiad in China 2019-2020: Problems and Solutions
SN  - 9789811256332
PB  - World Scientific
KW  - Mathematics
UR  - https://www.worldscientific.com/worldscibooks/10.1142/12837#t=toc
ER  -