SIHOTANG, Maria Emiwati; WARMI, Attin. Analisis Kemampuan Berpikir Kritis Matematis Siswa SMP Pada Materi Sistem Persamaan Linear Dua Variabel. Jurnal Didactical Mathematics , [S. l.], v. 5, n. 2, p. 282–294, 2023. DOI: 10.31949/dm.v5i2.5907. Disponível em: https://www.ejournal.unma.ac.id/index.php/dm/article/view/5907. Acesso em: 18 jun. 2026.