B. TAHA, D.; H. ABDULRAHEEM, F. Copyright Protection for Text Documents. AL-Rafidain Journal of Computer Sciences and Mathematics, [S. l.], v. 4, n. 2, p. 87–101, 2007. DOI: 10.33899/csmj.2007.164029 . Disponível em: https://csmj.uomosul.edu.iq/index.php/csmj/article/view/36682. Acesso em: 17 dec. 2025.