PENGARUH MODEL PROBLEM BASED LEARNING (PBL) TERHADAP KEMAMPUAN PEMECAHAN MASALAH MATEMATIS SISWA. Jurnal Ilmiah Soulmath : Jurnal Edukasi Pendidikan Matematika, [S. l.], v. 8, n. 1, p. 73–82, 2020. DOI: 10.25139/smj.v8i1.2537. Disponível em: https://ejournal.unitomo.ac.id/index.php/mipa/article/view/2537. Acesso em: 17 jun. 2026.