H. ISMAIL, T.; طاهر; O. HAMAD, I.; إبراهیم; A. HUSSEIN, S.; سامی. Pθ-Topological Groups in Nonstandard Analysis. AL-Rafidain Journal of Computer Sciences and Mathematics, [S. l.], v. 9, n. 1, p. 191–199, 2025. Disponível em: https://ojs.uomosul.edu.iq/index.php/csmj/article/view/19677. Acesso em: 6 aug. 2025.