YUSTIWIZARTO, Y. Penerapan Model Pembelajaran Problem Based Learning (PBL) Untuk Meningkatkan Hasil Belajar Matematika Menggunakan Alat Ukur Satuan Baku Non Baku Kelas II Sd Negeri 007 Rokan IV Koto . Journal of Development Education and Learning (JODEL), [S. l.], v. 2, n. 3, p. 190–196, 2024. DOI: 10.70437/jodel.v2i3.57. Disponível em: https://jodel.or.id/index.php/jodel/article/view/57. Acesso em: 14 jan. 2026.