RAHAYU, Sri Mulya; 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, [S. l.], v. 1, n. 1, p. 31–39, 2025. DOI: 10.61994/perpendicular.v1i1.939. Disponível em: https://jurnal.dokicti.org/index.php/perpendicular/article/view/939. Acesso em: 2 aug. 2025.