Simnjanovski, R., D. L. Sturz, R. Ardito, S. Dunbar, J. Keneaster, and D. Snowden. “Personalized Weekly Overviews: A Comparison Of Text And Video Announcements Measuring Student Engagement, Achievement And Misunderstanding In An Online Classroom”. Contemporary Issues in Education Research (CIER), vol. 13, no. 1, Jan. 2020, pp. 1-12, https://clutejournals.com/index.php/CIER/article/view/10399.