Mahdi, Wala’a A., and Sadiq Al-Nassir. 2024. “The Optimal Harvesting Strategy of A Discretized Stage-Structured Prey-Predator Fractional Model With Crowley-Martin Functional Response”. Iraqi Journal of Science 65 (6): 3331-44. https://doi.org/10.24996/ijs.2024.65.6.%g.