Ambarwati B, Aisyah N, Hapizah, Ismail N. STEM-based 2D Shapes Learning Design in Parachuting Context to Support Student’s Flexibility Ability. j. pend. mat. [Internet]. 2024 Apr. 30 [cited 2024 Dec. 26];18(2):199-216. Available from: https://jpm.ejournal.unsri.ac.id/index.php/jpm/article/view/76