AUTHOR=Yang Yanhua , Chen Jianfeng , Zhuang Xin TITLE=Self-determination theory and the influence of social support, self-regulated learning, and flow experience on student learning engagement in self-directed e-learning JOURNAL=Frontiers in Psychology VOLUME=16 YEAR=2025 URL=https://www.frontiersin.org/journals/psychology/articles/10.3389/fpsyg.2025.1545980 DOI=10.3389/fpsyg.2025.1545980 ISSN=1664-1078