Thompson, Roger D. “Responsive, Formative Evaluation : A Flexible Means for Improving Distance Learning Materials”. International Journal of E-Learning & Distance Education / Revue internationale du e-learning et la formation à distance 2, no. 1 (April 22, 1987): 62–76. Accessed November 23, 2024. https://ijede.ca/index.php/jde/article/view/312.