Donkor, Francis. “Assessment of Learner Acceptance and Satisfaction With Video-Based Instructional Materials for Teaching Practical Skills at a Distance”. The International Review of Research in Open and Distributed Learning 12, no. 5 (June 29, 2011): 74–92. Accessed April 24, 2024. https://www.irrodl.org/index.php/irrodl/article/view/953.