TAMER NABIL. “Applying Hybrid Coupled Fixed Point Theory to the Nonlinear Hybrid System of Second Order Differential Equations”. Journal of Computational Analysis and Applications (JoCAAA) 29, no. 3 (May 14, 2021): 494–504. Accessed March 11, 2025. https://eudoxuspress.com/index.php/pub/article/view/164.