Eka Sari M, Ermalinda, Handayani N, Mabruria A. PROBLEM-BASED LEARNING IN MATHEMATICS EDUCATION: ANALYSIS OF TEACHERS’ CHALLENGES AND IMPLEMENTATION SOLUTIONS. JLS [Internet]. 2024 Nov. 30 [cited 2025 Apr. 30];6(2):54-63. Available from: https://jls.ejournal.unsri.ac.id/index.php/jls/article/view/102