AHMED, Y.; ASLAM, M. Semi Unit Graphs of Commutative Semi Rings. Communications in Mathematics and Applications, [S. l.], v. 10, n. 3, p. 519–530, 2019. DOI: 10.26713/cma.v10i3.1203. Disponível em: http://www.rgnpublications.com/journals/index.php/cma/article/view/1203. Acesso em: 20 apr. 2024.