Prianto, Agus. “Analisis Kemampuan Berpikir Kreatif Matematis Melalui Problem Posing Bersifat Open Ended”. Jurnal Pengembangan Pembelajaran Matematika 3, no. 1 (February 28, 2021): 32–42. Accessed February 5, 2025. https://ejournal.uin-suka.ac.id/tarbiyah/jppm/article/view/031.032-042.