SUFYAN A. WUHAIB; BILAL A. YASEEN. SIS MODEL WITH HARVESTING IN FOOD CHAIN MODEL. Tikrit Journal of Pure Science, [S. l.], v. 25, n. 1, p. 108–117, 2020. DOI: 10.25130/tjps.v25i1.220. Disponível em: https://tjpsj.org/index.php/tjps/article/view/220. Acesso em: 17 jun. 2025.