Bestari indah, Dini Ramadhani, Muhammad Febri Rafli. PENGARUH MODEL PROBLEM BASED LEARNING TERHADAP KEMAMPUAN PEMAHAMAN MATEMATIS SISWA KELAS IV DI SEKOLAH DASAR NEGERI 7 LANGSA. didaktik [Internet]. 2025Sep.30 [cited 2026Nov.15];11(03):229 -37. Available from: https://journal.stkipsubang.ac.id/index.php/didaktik/article/view/8148