NAINGGOLAN, D. Y. PENERAPAN MODEL PROBLEM BASED LEARNING (PBL) UNTUK MENINGKATKAN KEMAMPUAN BERPIKIR KRITIS SISWA BERBANTUAN APLIKASI MATH MOBILE LEARNING. Cartesius : Jurnal Pendidikan Matematika, [S. l.], v. 3, n. 1, p. 87–100, 2020. Disponível em: https://ejournal.ust.ac.id/index.php/CARTESIUS/article/view/796. Acesso em: 3 may. 2024.