ANSARI, S. J.; PAWAR, K. F. On Primary and Regular $\Gamma$-Semihypergroups. Thai Journal of Mathematics, [S. l.], v. 22, n. 2, p. 311–322, 2024. Disponível em: https://thaijmath2.in.cmu.ac.th/index.php/thaijmath/article/view/1647. Acesso em: 12 jul. 2024.