China's seven core periodical systems,
1, Chinese Core Journal of Peking University Library;
2. Nanjing University "China Social Science Citation Index (CSSCI) Source Periodical";
3. China Institute of Science and Technology Information "China Science and Technology Papers Statistical Source Journal" (also known as "China Science and Technology Core Journal");
4. China Core Journal of Humanities and Social Sciences, Document Information Center of Chinese Academy of Social Sciences;
5. China Academy of Sciences Information Center "China Science Citation Database (CSCD) Source Journals";
6. China Humanities and Social Sciences Newspaper "Core Journal of China Humanities and Social Sciences Newspaper";
7. Wan Fang Data Co., Ltd. "Selected Database of China Core Journals".