A. Dumčienė and D. Lapėnienė, “Possibilities of Developing Study Motivation in E-Learning Products”, ELEKTRON ELEKTROTECH, vol. 102, no. 6, pp. 43–46, May 2010, Accessed: Jan. 22, 2026. [Online]. Available: https://eejournal.ktu.lt/index.php/elt/article/view/9349