Purwa Kusuma A, Waluya SB, R, Mariani S. Algebraic Thinking Process of Students with High Mathematical Ability in Solving Linear Equations Based on Cognitive Systems. PEGEGOG [Internet]. 2024 Apr. 5 [cited 2025 May 17];14(3):146-59. Available from: https://www.pegegog.net/index.php/pegegog/article/view/2846