ODETALLAH, Huda; AL-EZEH, Hasan; OSBA, Emad Abu. Characterizations of almost PP-ring for three important classes of rings. Italian Journal of Pure and Applied Mathematics, [S. l.], v. 43, p. 642–652, 2020. Disponível em: https://journals.uniurb.it/index.php/ijpam/article/view/7309. Acesso em: 6 nov. 2026.