PARINDANG, E. A.; YUSPELTO, N. M.; RAMLAN, W.; ANGRAINI, L. M. Analisis Kesulitan Siswa SMP dalam Menyelesaikan Soal Geometri Bangun Ruang Sisi Datar. Progressive of Cognitive and Ability, [S. l.], v. 3, n. 3, p. 167–180, 2024. DOI: 10.56855/jpr.v3i3.1035. Disponível em: https://journals.eduped.org/index.php/jpr/article/view/1035. Acesso em: 27 jun. 2025.