JUJUR SABDANI HAREFA; SADIANA LASE; YAKIN NIAT TELAUMBANUA; NETTI KARIANI MENDROFA. Pengaruh Model Pembelajaran Concept Attainment Terhadap Kemampuan Pemahaman Konsep Matematis Siswa Kelas VII UPTD SMP Negeri 7 Gunungsitoli. Venn: Journal of Sustainable Innovation on Education, Mathematics and Natural Sciences, [S. l.], v. 5, n. 1, p. 108–120, 2026. DOI: 10.53696/venn.v5i1.424. Disponível em: https://journal.web.id/journals/venn/article/view/424. Acesso em: 7 oct. 2026.