Glazier, Rebecca A., and Heidi Skurat Harris. “Instructor Presence and Student Satisfaction Across Modalities: Survey Data on Student Preferences in Online and On-Campus Courses”. The International Review of Research in Open and Distributed Learning 22, no. 3 (May 3, 2021): 77–98. Accessed December 11, 2024. https://www.irrodl.org/index.php/irrodl/article/view/5546.