MMASI, Eliud. A characterization of algebraic structures of group rings obtained from matrix rings. African Journal of Empirical Research, Nairobi, Kenya, v. 7, n. 2, p. 986–998, 2026. DOI: 10.51867/ajernet.maths.7.2.86. Disponível em: https://ajernet.net/ojs/index.php/ajernet/article/view/1932. Acesso em: 6 nov. 2026.