S. O, A. and M, Y. (2022) “Single-Step Sixth Stage Implicit Runge-Kutta Method for First-Order Initial Value Problems of Ordinary Differential Equations”, International Journal of Science for Global Sustainability, 8(1), p. 6. Available at: https://mail.fugus-ijsgs.com.ng/index.php/ijsgs/article/view/339 (Accessed: 3 August 2026).