Peningkatan Kemampuan Representasi Matematis melalui Model Problem Based Learning. PTK: Jurnal Tindakan Kelas, [S. l.], v. 4, n. 1, p. 1–17, 2023. DOI: 10.53624/ptk.v4i1.242. Disponível em: https://jurnal.ciptamediaharmoni.id/ptk/article/view/242. Acesso em: 25 oct. 2026.