AL-NASSIR, S.; HAMOUDI, G. M. An Optimal Harvesting of A Discrete Time System with Ricker Growth. Communications in Mathematics and Applications, [S. l.], v. 10, n. 1, p. 169–179, 2019. DOI: 10.26713/cma.v10i1.1035. Disponível em: http://www.journals.rgnpublications.com/index.php/cma/article/view/1035. Acesso em: 16 jun. 2025.