Henrie, Curtis R, Robert Bodily, Kristine C Manwaring, and Charles R Graham. “Exploring Intensive Longitudinal Measures of Student Engagement in Blended Learning”. The International Review of Research in Open and Distributed Learning 16, no. 3 (June 19, 2015). Accessed July 2, 2022. https://www.irrodl.org/index.php/irrodl/article/view/2015.