Adamu, M.A., Dahiru, U., and Shalom, D.B. “One Step Hybrid Block Method for The Solution of Optimal Control Problems”. International Journal of Science for Global Sustainability 5, no. 2 (December 24, 2019): 7. Accessed May 2, 2026. https://fugus-ijsgs.com.ng/index.php/ijsgs/article/view/152.