Saad A, Elrokh A, Mubarak M, Nada S. The Approximate Numerical Solutions to First Order Non-Linear Differential Equations and Their Connections to the Orthogonal Double Cover in Graph Theory. Contemp. Math. [Internet]. 2025 Jun. 30 [cited 2025 Jul. 10];6(4):3873-89. Available from: https://ojs.wiserpub.com/index.php/CM/article/view/3740