Chibuisi, C., B. O. Osu, U. W. Sirisena, K. Uchendu, and C. Granados. “The Computational Solution of First Order Delay Differential Equations Using Second Derivative Block Backward Differentiation Formulae”. International Journal of Mathematical Sciences and Optimization: Theory and Applications 7, no. 2 (March 28, 2022): 88 - 106. Accessed November 21, 2024. http://ijmso.unilag.edu.ng/article/view/1451.