R. M. Yaseen, “The Effect of Two Infectious Diseases and Harvesting in the Eco-Epidemiological Model”, Al-Nahrain J. Sci., vol. 18, no. 1, pp. 162–171, Jun. 2018, Accessed: May 22, 2026. [Online]. Available: https://anjs.edu.iq/index.php/anjs/article/view/367