1.
Costley J. The Effects of Three Types of Instructor Posting on Critical Thinking and Social Presence: No Posting, Facilitating Discourse, and Direct Instruction. IJLTER [Internet]. 2015 Jun. 30 [cited 2026 Apr. 20];12(2):26-47. Available from: http://www.ijlter.net/index.php/ijlter/article/view/1055