Sulistyaningtyas AD, Wantika RR. Analysis of Student Learning Difficulties in Solving Calculus II Course Case Studies. JELMaR [Internet]. 2023 Nov. 22 [cited 2026 Aug. 25];4(2):171-8. Available from: https://jelmar.wisnuwardhana.ac.id/index.php/jelmar/article/view/159