YOUSIF ALKHAYAT, R. Finding the Amount of the Occupation of a Specific Datum in a ‎Database File. AL-Rafidain Journal of Computer Sciences and Mathematics, [S. l.], v. 6, n. 1, p. 135–147, 2009. DOI: 10.33899/csmj.2009.163791 . Disponível em: https://csmj.uomosul.edu.iq/index.php/csmj/article/view/36909. Acesso em: 17 dec. 2025.