میمون أ. . إحصائيات التصنيف *Z و Z . Dirasat in Economics and Business , [S. l.], v. 16, n. 1-2, 1980. DOI: 10.37376/deb.v16i1-2.1981. Disponível em: https://next.fannak.com/index.php/DEB/article/view/1981. Acesso em: 23 aug. 2026.