ِِAl-khayru R. Information Retrieval Standard Z39.50. Adab Al-Rafidayn, [S. l.], v. 38, n. 51, p. 415–438, 2008. DOI: 10.33899/radab.2008.32989. Disponível em: https://jamh.uomosul.edu.iq/index.php/radab/article/view/31970. Acesso em: 27 sep. 2025.