Naji, Raid, and Asraa Aaid. “The Dynamics of One Harmful Phytoplankton and Two Competing Zooplankton System”. Iraqi Journal of Science 54, no. 3. Mathematics conf (February 13, 2024): 775–792. Accessed December 6, 2025. https://www.ijs.uobaghdad.edu.iq/index.php/eijs/article/view/12459.