ELTIYEB ALI; AYOUB ELSHOKRY. On Strongly Symmetric Rings. International Journal of Mathematics And its Applications, [S. l.], v. 5, n. 4 - A, p. 61–65, 2017. Disponível em: http://ijmaa.in/index.php/ijmaa/article/view/1239. Acesso em: 20 may. 2024.