MEKONNEN SHALLA, Moges; OLGUN, Necati. Direct and Semi-Direct Product of Neutrosophic Extended Triplet Group. Neutrosophic Sets and Systems, [S. l.], v. 29, p. 197–214, 2019. Disponível em: https://fs.unm.edu/nss8/index.php/111/article/view/229.. Acesso em: 9 may. 2025.