Analisis Kemampuan Penalaran Matematis Siswa Melalui Problem Based Learning Di SMP Negeri 3 Tebing Tinggi. JKIP [Internet]. 11 august 2025 [citat 30 iulie 2026];6(3):854-68. Disponibil la: https://journal.al-matani.com/index.php/jkip/article/view/1505