Parindang, E.A., Yuspelto, N.M., Ramlan, W. and Angraini, L.M. 2024. Analisis Kesulitan Siswa SMP dalam Menyelesaikan Soal Geometri Bangun Ruang Sisi Datar. Progressive of Cognitive and Ability. 3, 3 (Jul. 2024), 167–180. DOI:https://doi.org/10.56855/jpr.v3i3.1035.