PENGARUH PENERAPAN MODEL PROBLEM BASED LEARNING BERBANTUAN GEOGEBRA TERHADAP KEMAMPUAN KOMUNIKASI MATEMATIS PESERTA DIDIK KELAS VIII SMP NEGERI 4 PAYAKUMBUH. Jurnal Edukasi dan Penelitian Matematika, [S. l.], v. 14, n. 3, p. 15–20, 2025. DOI: 10.24036/k3ed6w88. Disponível em: https://jepm.ppj.unp.ac.id/index.php/jepm/article/view/107. Acesso em: 5 sep. 2025.