Barus, D.A.B. et al. 2024. Mengajarkan Konsep Dasar Geometri di SD: Langkah Awal Menuju Pemahaman Matematika. AR-RUMMAN: Journal of Education and Learning Evaluation. 1, 2 (Nov. 2024), 764–769. DOI:https://doi.org/10.57235/arrumman.v1i2.4428.