KARIM, Hilmi; ABDELLATIF, Orbi; AHMED, Makaoui; HASSAN, Bouksim; MOHAMMED, Idrissi; OMAR, Ettahiri; BENYOUNES, Abdellaoui; MUSTAPHA, Ait Chattou. European Scientific Journal, ESJ, [S. l.], v. 13, n. 9, p. 68, 2017. DOI: 10.19044/esj.2017.v13n9p68. Disponível em: https://last.eujournal.org/index.php/esj/article/view/9011. Acesso em: 21 mar. 2026.