Cho M-H, Tobias S. Should Instructors Require Discussion in Online Courses? Effects of Online Discussion on Community of Inquiry, Learner Time, Satisfaction, and Achievement. IRRODL [Internet]. 2016 Mar. 1 [cited 2024 May 5];17(2). Available from: https://www.irrodl.org/index.php/irrodl/article/view/2342