FENG, C. Existence of positive periodic oscillation for a competitive-cooperative model with feedback controls. European Journal of Applied Sciences, [S. l.], v. 11, n. 6, p. 40–53, 2023. DOI: 10.14738/aivp.116.15793. Disponível em: http://804474.wannyin.cyou/index.php/AIVP/article/view/15793. Acesso em: 3 dec. 2024.