Permata Sari D. Differences in Students’ Problem Solving Abilities Using the Gallery Walk Method and the GeoGebra-Based Demonstration Method on the Algebraic Functions Derivatives in Class XI of SMA Negeri 1 Banda Aceh. iconesth [Internet]. 2025 Jan. 13 [cited 2026 Jul. 3];:537-43. Available from: https://eproceeding.bbg.ac.id/index.php/iconesth/article/view/429