Soeviatulfitri, Soeviatulfitri, and Kashardi Kashardi. 2020. “Kemampuan Berpikir Kreatif Matematis Siswa Melalui Model Problem Based Learning (PBL) Dan Model Pembelajaran Osborn Di SMP”. Jurnal Pendidikan Matematika Raflesia 5 (3):35-43. https://doi.org/10.33369/jpmr.v5i3.11502.