MADAWISTAMA, Sri Tirto; HERYANI , Yeni; KURNIAWAN, Dian. Three zone learning concepts to improve mathematical proof of probability theory. Jurnal Math Educator Nusantara: Wahana Publikasi Karya Tulis Ilmiah di Bidang Pendidikan Matematika, Indonesia, INA, v. 8, n. 1, p. 27–38, 2022. DOI: 10.29407/jmen.v8i1.17004. Disponível em: https://ojs.unpkediri.ac.id/index.php/matematika/article/view/17004. Acesso em: 5 apr. 2025.