KEONG, A. T.; M SAFUAN, H.; JACOB, K. Dynamical Behaviours of Prey-predator Fishery Model with Harvesting Affected by Toxic Substances. MATEMATIKA: Malaysian Journal of Industrial and Applied Mathematics, [S. l.], v. 34, n. 1, p. 143–151, 2018. DOI: 10.11113/matematika.v34.n1.1018. Disponível em: https://matematika.utm.my/index.php/matematika/article/view/1018. Acesso em: 28 sep. 2021.