Beaulieu, Judith, Mario Godard, and François Bowen. “Calculating the Productivity and Efficiency of an Educational Product: Transposition of Mario Godards Method”. INTERNATIONAL JOURNAL OF RESEARCH IN EDUCATION METHODOLOGY 8, no. 1 (May 30, 2017): 1411–1419. Accessed May 25, 2024. https://rajpub.com/index.php/ijrem/article/view/6070.