Peking University

The United States Tariff Commission.

Fudan University

Renmin University of China

Shanghai Jiao Tong University

Nanjing University, Tongji University

Zhejiang University

Nankai University

northing

Beijing Normal University

Wuhan University

Xi’an Jiaotong University

Tianjin University

Huazhong University of Science and Technology

Beijing Institute of Technology

Southeast China University

Sun Yat-sen University

East China Normal University, etc.