Bashir Ahmad, et al. “A Study of a Coupled System of Nonlinear Second-Order Ordinary Differential Equations With Nonlocal Integral Multi-Strip Boundary Conditions on an Arbitrary Domain”. Journal of Computational Analysis and Applications (JoCAAA), vol. 29, no. 2, Mar. 2021, pp. 215-3, http://eudoxuspress.com/index.php/pub/article/view/143.