KARIM, Ari Wiranto; MAJID, Majid; BITO, Nursiya. Analisis Kesulitan Pemahaman Konsep Siswa Dalam Menyelesaikan Soal Pada Materi Himpunan Di SMP Negeri 2 Bolangitang Timur. Innovative: Journal Of Social Science Research, [S. l.], v. 3, n. 2, p. 7066–7080, 2023. Disponível em: https://j-innovative.org/index.php/Innovative/article/view/1186. Acesso em: 4 jun. 2026.