Hassan, I.M. and Alhswem, S.A. 2022. On the System of Nonlinear Elliptic Equations with Nonlocal Boundary Conditions of Neumnna Type. The Libyan Journal of Science. 23, 1 (Feb. 2022), 31–39. DOI:https://doi.org/10.55276/ljs.v23i1.119.