Rongxin Zhang, Zhongrang Bian. “Developments and Changes in Economics of Education in Recent Three Decades: A Visualized Analysis Using Citespace”. Design Engineering 2021, no. 04 (May 10, 2021): 937 - 950. Accessed May 9, 2024. http://thedesignengineering.com/index.php/DE/article/view/1481.