Budi DS, Bintoro HS, Rahayu R. Learning Activeness Affects the Ability to Understand Students’ Mathematical Concepts Using Discovery Learning Model. J. Educ. Technol. [Internet]. 2020 Sep. 14 [cited 2024 Apr. 28];4(3):340-8. Available from: https://ejournal.undiksha.ac.id/index.php/JET/article/view/27907