[1]
Journal, B.S. 2021. Heun Method Using to Solve System of NonLinear Functional Differential Equations: Shymaa Hussain Salih. مجلة بغداد للعلوم. 4, 4 (2021), 666-669. DOI:https://doi.org/10.21123/bsj.2007.4.4.666-669.