Miller, Michael, and Dann Husmann. “A Holistic Model for Primary Factors in the Ecology of Distance Education Course Offerings”. International Journal of E-Learning & Distance Education / Revue internationale du e-learning et la formation à distance 11, no. 1 (September 14, 2007): 101–110. Accessed May 2, 2024. https://ijede.ca/index.php/jde/article/view/243.