College of Management and Economics, Deb. Of Statistic, Mustansiriyah University. Journal of the College of Basic Education, [S. l.], v. 28, n. 114, p. 344–353, 2022. DOI: 10.35950/cbej.v28i114.5413. Disponível em: https://cbej.uomustansiriyah.edu.iq/index.php/cbej/article/view/5413.. Acesso em: 28 jun. 2026.