Mudrák, Marián, Milan Turčáni, and Jaroslav Reichel. “Impact of Using Personalized E-Course in Computer Science Education”. Journal on Efficiency and Responsibility in Education and Science 13, no. 4 (December 22, 2020): 174-188. Accessed January 21, 2021. https://www.eriesjournal.com/index.php/eries/article/view/305.