Yakubu, S. D., Y. A. Yahaya, and K. O. LAWAL. 2021. “3-Step Block Hybrid Linear Multistep Methods for Solution of Special Second Order Ordinary Differential Equations”. Journal of the Nigerian Mathematical Society 40 (2):149-60. https://ojs.ictp.it/jnms/index.php/jnms/article/view/86.