Xu Fang, Mingyue Ma , Guanhu Zhao , Qiwei Yue , Yi Hu. “Research on Influence Factors of College Students’ MOOC Learning Engagement in the Context of Credit Transfer”. Design Engineering (September 30, 2020): 528 - 539. Accessed May 5, 2024. http://thedesignengineering.com/index.php/DE/article/view/722.