Modification of the Fourth Order Runge Kutta Method Based on the Contra Harmonic Average. Interval: Indonesian Journal of Mathematical Education, [S. l.], v. 3, n. 1, p. 69–81, 2025. DOI: 10.37251/ijome.v3i1.1588. Disponível em: https://cahaya-ic.com/index.php/IJoME/article/view/1588. Acesso em: 31 may. 2026.