Saputra, H., Maimunah, & Yuanita, P. (2024). Development of Learning Instruments Based on The Problem Based Learning Model to Facilitate Students’ Mathematical Problem Solving Skill on Curved 3D Shapes. Jurnal Absis: Jurnal Pendidikan Matematika Dan Matematika, 6(2), 1006–1021. https://doi.org/10.30606/absis.v6i2.2381