MARDIYAH, Lutfiyati; SUNARSI, Anis. Problem-Based Learning and Flipped Classroom: Can it Improve Student Achievement?. Edumatica : Jurnal Pendidikan Matematika, [S. l.], v. 14, n. 1, p. 25–38, 2024. DOI: 10.22437/edumatica.v14i01.24948. Disponível em: https://www.online-journal.unja.ac.id/edumatica/article/view/24948. Acesso em: 23 apr. 2026.