HAJIZAH, M. N. .; HAJIZAH, M. N. .; SALSABILA, E. .; HADI, I. .; MEGANINGTYAS, D. E. W. . The development of didactical tetrahedron design on learning integers to improve algebraic thinking skills. International Journal of Innovative Research and Scientific Studies, [S. l.], v. 8, n. 3, p. 2077–2083, 2025. DOI: 10.53894/ijirss.v8i3.6945. Disponível em: https://www.ijirss.com/index.php/ijirss/article/view/6945. Acesso em: 4 jul. 2025.