Periodical C = CSSCI = NTU core periodical and Peking University core periodical. The core of NTU is evaluated by China Social Science Research and Evaluation Center of Nanjing University every two years. The core of Peking University is the academic definition of a certain kind of periodical, a classification of periodical grades. Journal of Zhejiang University (Humanities and Social Sciences Edition) is a comprehensive academic theoretical journal sponsored by Zhejiang University and headed by the Ministry of Education, so it is not a class C journal.