Aslan, Aslan, Jumalia Jumalia, and Asdar Asdar. “Implementation of Project-Based Learning Models With a STEM Approach to Understanding Student Concepts in Spatial Geometry”. OMEGA: Jurnal Keilmuan Pendidikan Matematika 5, no. 1 (January 27, 2026): 24–30. Accessed February 2, 2026. https://ejurnal.univamedan.ac.id/index.php/jkpm/article/view/1148.