Dynamical Behavior of Two Predators-One Prey Ecological System with Refuge and Beddington –De Angelis Functional Response. Iraqi Journal of Science [Internet]. 2023 Dec. 30 [cited 2024 May 18];64(12):6383-400. Available from: https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/7942