HASAN, Elaf R.; KAREEM, Fatema F. Study of Two Types Finite Graphs in KU-Semigroups. Ibn AL-Haitham Journal For Pure and Applied Sciences, Baghdad, Iraq., v. 31, n. 3, p. 160–170, 2018. DOI: 10.30526/31.3.2009. Disponível em: https://jih.uobaghdad.edu.iq/index.php/j/article/view/2009. Acesso em: 26 mar. 2025.