Abdullah, Sri Susilawati, I Ikrimah, and Rosdiana IM. “Final Semester Students’ Perception of Difficulties in Solving Proof Problems in Real Analysis Course”. Golden Ratio of Social Science and Education 6, no. 1.1 (May 29, 2026): 88–95. Accessed August 24, 2026. https://goldenratio.id/index.php/grsse/article/view/2336.