Zhao, Biao, and Kaiyong Wang. “The Differences Between County, County-Level City and Municipal District in the System of Administrative Districts in China”. Journal of Geographical Research 5, no. 1 (January 20, 2022): 25–38. Accessed April 29, 2024. https://journals.bilpubgroup.com/index.php/jgr/article/view/3739.