DARAFSHEH, M.R.; REZAEEZADEH, G.R.; KORUKI, M.R. Dehghan. NON-FACTORIZABLE GROUPS. Italian Journal of Pure and Applied Mathematics, [S. l.], v. 31, p. 43–48, 2013. Disponível em: https://journals.uniurb.it/index.php/ijpam/article/view/6162. Acesso em: 26 jul. 2026.