ISMAIL, M. Marketing information services in university libraries. Adab Al-Rafidayn, [S. l.], v. 28, n. 31, p. 400–424, 1998. DOI: 10.33899/radab.1998.166667. Disponível em: https://jamh.uomosul.edu.iq/index.php/radab/article/view/31866. Acesso em: 28 sep. 2025.