كفاءة الاستهداف بنظام دعم الغذاء فى مصر. Journal of Economics and Management Research, [S. l.], v. 1, n. 2, p. 91–112, 2020. Disponível em: https://ojs.cu-maghnia.dz/index.php/management/article/view/21. Acesso em: 15 may. 2026.