Mohammed, Umaru, Jamiu Garba, and M. E Semenov. “ONE-STEP SECOND DERIVATIVE BLOCK INTRA-STEP METHOD FOR STIFF SYSTEM OF ORDINARY DIFFERENTIAL EQUATIONS: ONE-STEP SECOND DERIVATIVE”. Journal of the Nigerian Mathematical Society 40, no. 1 (May 18, 2021): 47–57. Accessed June 23, 2021. https://ojs.ictp.it/jnms/index.php/jnms/article/view/621.