Wulandari D, Susiswo S, Sulandra IM. Proses Kemampuan Berpikir Kreatif Siswa Matematika Berdasarkan Masalah Open-Ended pada Materi Bangun Datar. cendekia [Internet]. 1Aug.2021 [cited 18May2024];5(3):2198-207. Available from: https://www.j-cup.org/index.php/cendekia/article/view/847