AUTHOR=Hu Juan , Xiao Wen TITLE=What are the influencing factors of online learning engagement? A systematic literature review JOURNAL=Frontiers in Psychology VOLUME=Volume 16 - 2025 YEAR=2025 URL=https://www.frontiersin.org/journals/psychology/articles/10.3389/fpsyg.2025.1542652 DOI=10.3389/fpsyg.2025.1542652 ISSN=1664-1078