Diamantis, Konstantinos, Kleanthis Koupidis, and Konstantinos Bikos. “The Use of Response Systems in Higher Education During the Covid-19 Pandemic Period”. International Journal of Learning and Development 12, no. 1 (June 18, 2024): 14–29. Accessed October 5, 2024. https://macrojournal.org/index.php/ijld/article/view/1669.