1.
Nikolova A, Georgiev V, Mitreva E. Evaluation of Achievement Badges as a Gamification Method for Increasing Motivation in e-Learning. DiPP [Internet]. 2024 Sep. 5 [cited 2024 Nov. 1];14:241-8. Available from: https://dipp.math.bas.bg/dipp/article/view/dipp.2024.14.22