Yaghoubi, Abdulrahman, and Hashem Saberi Najafi. “Comparison Between Standard and Non-Standard Finite Difference Methods for Solving First and Second Order Ordinary Differential Equations”. International Journal of Applied Mathematical Research 4, no. 2 (April 5, 2015): 316–324. Accessed April 29, 2024. https://www.sciencepubco.com/index.php/ijamr/article/view/4331.