M. Khlaf, Bashir, بشیر, Ghanim Ghanim M.S. Abdullah, and غانم. “Modifying Runge – Kutta Methods With Higher Order Derivative Approximations”. Journal of Education and Science (JES) 19, no. 2 (January 1, 1970): 84–98. Accessed August 4, 2025. https://rjps.uomosul.edu.iq/index.php/edusj/article/view/18097.