Oghonyon, J. G., S. A. Okunuga, K. S. Eke, and O. A. Odetunmibi. “Block Milne’s Implementation For Solving Fourth Order Ordinary Differential Equations”. Engineering, Technology & Applied Science Research, vol. 8, no. 3, June 2018, pp. 2943-8, doi:10.48084/etasr.1914.