SAPUTRO, Hengkang Bara; HIDAYATI , Annisa Nur. The effect of using korong calculating media on problem solving ability in calculating operations of multiple class II students of SD Muhammadiyah Klepu. Jurnal Math Educator Nusantara: Wahana Publikasi Karya Tulis Ilmiah di Bidang Pendidikan Matematika, Indonesia, INA, v. 10, n. 1, p. 41–54, 2024. DOI: 10.29407/jmen.v10i1.20783. Disponível em: https://ojs.unpkediri.ac.id/index.php/matematika/article/view/20783. Acesso em: 4 apr. 2025.