Mahfudy, Sofyan, Kamirsyah Wahyu, Mauliddin Mauliddin, Lalu Sucipto, Erpin Evendi, and Samsul Irpan. “Characters and Values in Mathematics Teaching and Learning: A Review of Research in Indonesia”. Beta: Jurnal Tadris Matematika 12, no. 1 (May 31, 2019): 60–81. Accessed February 15, 2025. https://jurnalbeta.ac.id/index.php/betaJTM/article/view/237.