ASTUTI, A. P.; HARIANTO, N.; WIJAYANTI, Y. Problematika Pembelajaran Matematika Materi Sudut Siswa Kelas V SD Negeri 011 Sorek Satu. Journal of Development Education and Learning (JODEL), [S. l.], v. 2, n. 2, p. 161–167, 2024. DOI: 10.70437/jodel.v2i2.74. Disponível em: https://jodel.or.id/index.php/jodel/article/view/74. Acesso em: 3 nov. 2025.