Rahayu, Sri Mulya, and Afisah. “ENHANCING STUDENTS’ INTEREST IN LEARNING MATHEMATICS THROUGH THE IMPLEMENTATION OF PROBLEM-BASED LEARNING: A CLASSROOM ACTION RESEARCH”. Perpendicular : Journal of Mathematics Education and Learning 1, no. 1 (March 31, 2025): 31–39. Accessed August 2, 2025. https://jurnal.dokicti.org/index.php/perpendicular/article/view/939.