Ambarwati, Belinda, Nyimas Aisyah, Hapizah, and Norulhuda Ismail. 2024. “STEM-Based 2D Shapes Learning Design in Parachuting Context to Support Student’s Flexibility Ability”. Jurnal Pendidikan Matematika 18 (2):199-216. https://doi.org/10.22342/jpm.v18i2.pp199-216.