1.
Tandililing P, Sirampun E, Kho R, Ruamba MY. Geometric Thinking Levels in Learning Quadrilaterals: A Van Hiele-Based Case Study in a Papuan Junior High School. Universitas Jambi [Internet]. 2025 Jun. 30 [cited 2026 Apr. 22];15(2):124-36. Available from: https://www.online-journal.unja.ac.id/edumatica/article/view/43719