Pasaribu, Rosida Minta Ito, Edy Surya, and Muhammad Amin Fauzi. “IMPROVING MATHEMATICAL THINKING THROUGH THE IMPLEMENTATION OF THE PROBLEM-BASED LEARNING MODEL IN ELEMENTARY SCHOOL STUDENTS”. Jurnal Merah Putih Sekolah Dasar 2, no. 1 (September 24, 2024): 1–10. Accessed January 29, 2026. https://jurnal.unimed.ac.id/2012/index.php/jmpsd/article/view/60128.