Wedemeyer, Charles A. “Status and Trends of Distance Education (2nd Ed.) - Börje Holmberg”. International Journal of E-Learning & Distance Education / Revue internationale du e-learning et la formation à distance 2, no. 1 (April 22, 1987): 90–91. Accessed April 26, 2024. https://ijede.ca/index.php/jde/article/view/569.