“Dynamical Behavior of Two Predators-One Prey Ecological System With Refuge and Beddington –De Angelis Functional Response”. Iraqi Journal of Science 64, no. 12 (December 30, 2023): 6383–6400. Accessed December 19, 2024. https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/7942.