RISMA, M. W.; SUDIBYO, E. . PENERAPAN MODEL PROBLEM BASED LEARNING MATERI PEMISAHAN CAMPURAN UNTUK MENINGKATKAN KETERAMPILAN PROBLEM SOLVING MURID SMP. SCIENCE : Jurnal Inovasi Pendidikan Matematika dan IPA, [S. l.], v. 6, n. 2, p. 669-679, 2026. DOI: 10.51878/science.v6i2.9708. Disponível em: https://jurnalp4i.com/index.php/science/article/view/9708. Acesso em: 19 mar. 2026.