Mahdi, Wala’a A., and Sadiq Al-Nassir. “The Optimal Harvesting Strategy of A Discretized Stage-Structured Prey-Predator Fractional Model With Crowley-Martin Functional Response”. Iraqi Journal of Science 65, no. 6 (June 30, 2024): 3331–3344. Accessed December 7, 2025. https://www.ijs.uobaghdad.edu.iq/index.php/eijs/article/view/9733.