“PENINGKATAN KEMAMPUAN PEMECAHAN MASALAH MATEMATIS SISWA MATERI SISTEM PERSAMAAN LINEAR DUA VARIABEL MELALUI PENERAPAN MODEL PROBLEM BASED LEARNING”, jsoscied, vol. 7, no. 2, pp. 655–664, Nov. 2024, doi: 10.32531/jsoscied.v7i2.868.