1.
Puandi A, Lubis A, Mulyono M. Development of Problem-Based Student Worksheet Learning Media Using Geogebra to Improve Mathematical Reasoning Skills and Learning Independence. j. perspekt. [Internet]. 2024 Aug. 27 [cited 2025 Jun. 20];8(2):149-60. Available from: https://perspektif.uinsgd.ac.id/index.php/JP/article/view/300