handayani, ike, Heny Sri Astutik, and Mukhlas Triono. “Analisis Kemampuan Berpikir Kritis Matematis Siswa Smp Kelas Vii Materi Sistem Persamaan Linear Dua Variabel (Spldv)”. THEOREMA: The Journal Education of Mathematics 5, no. 1 (July 31, 2024). Accessed April 24, 2025. https://e-journal.unimudasorong.ac.id/index.php/jurnaltheorema/article/view/1140.