Huda Farg Alspihe, and Hala Ail Shelo. 2025. “Least Square Method for Solving Second-Order Eigenvalue Problems With Nonlinear Delay Involves Ordinary Differential Equations With Nonlinear Delay”. African Journal of Advanced Pure and Applied Sciences 4 (3):7-13. https://doi.org/10.65418/ajapas.v4i3.1295.