Rahayu, Desti, Sabar Narimo, and Achmad Fathoni. “21st Century Character Education in Mathematics Learning for Elementary School Students”. Indonesian Journal of Character Education Studies 3, no. 1 (March 5, 2026): 1–9. Accessed March 12, 2026. https://ojs.aeducia.org/index.php/ijces/article/view/330.