Astuti, A.P., Harianto, N. and Wijayanti, Y. 2024. Problematika Pembelajaran Matematika Materi Sudut Siswa Kelas V SD Negeri 011 Sorek Satu. Journal of Development Education and Learning (JODEL). 2, 2 (May 2024), 161–167. DOI:https://doi.org/10.70437/jodel.v2i2.74.