Madawistama, Sri Tirto, Yeni Heryani, and Dian Kurniawan. “Three Zone Learning Concepts to Improve Mathematical Proof of Probability Theory”. Jurnal Math Educator Nusantara: Wahana Publikasi Karya Tulis Ilmiah di Bidang Pendidikan Matematika 8, no. 1 (May 31, 2022): 27-38. Accessed November 22, 2024. https://ojs.unpkediri.ac.id/index.php/matematika/article/view/17004.