Haghjoo S, Reyhani E. Undergraduate basic sciences and engineering students’ understanding of the concept of derivative. J.Res.Adv.Math.Educ [Internet]. 2021 Sep. 11 [cited 2025 Nov. 17];6(4):277-98. Available from: https://journals2.ums.ac.id/jramathedu/article/view/9446