Guajardo Leal, Brenda Edith, Jaime Ricardo Valenzuela González, and John Scott. “Student Engagement As Predictor of XMOOC Completion: An Analysis from Five Courses on Energy Sustainability”. Online Learning 23, no. 2 (June 1, 2019). Accessed March 29, 2026. https://olj.onlinelearningconsortium.org/index.php/olj/article/view/1523.