Jawad, Shireen, and Sarab Kazim Hassan. “Bifurcation Analysis of Commensalism Intraction and Harvisting on Food Chain Model”. Brazilian Journal of Biometrics 41, no. 3 (September 26, 2023): 218–233. Accessed September 19, 2024. http://200.131.250.9/index.php/BBJ/article/view/609.