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 (AJAPAS), 4(3), pp. 7–13. Available at: https://www.aaasjournals.com/index.php/ajapas/article/view/1295 (Accessed: 5 December 2025).