SIHOTANG, M. E.; WARMI, A. Analisis Kemampuan Berpikir Kritis Matematis Siswa SMP Pada Materi Sistem Persamaan Linear Dua Variabel. Didactical Mathematics, [S. l.], v. 5, n. 2, p. 282–294, 2023. DOI: 10.31949/dm.v5i2.5907. Disponível em: https://ejournal.unma.ac.id/index.php/dm/article/view/5907. Acesso em: 12 may. 2024.