V. CHINNADURAI; A. SWAMINATHAN; K. BHARATHIVELAN. $Q$-Cubic Ideals of Semigroups. International Journal of Mathematics And its Applications, [S. l.], v. 5, n. 2 - A, p. 163–173, 2017. Disponível em: https://ijmaa.in/index.php/ijmaa/article/view/802. Acesso em: 22 jul. 2024.