FARAJ ABDUNANBI. Approximations of Maximal and Principal Ideal. AlQalam Journal of Medical and Applied Sciences, [S. l.], v. 4, n. 1, p. 7–11, 2020. Disponível em: https://journal.utripoli.edu.ly/index.php/Alqalam/article/view/51. Acesso em: 2 may. 2024.