Economics of the regions of Saguia el- Hamra and Wadi el- Dhahab with Spanish eyes. Journal of Social Sciences, [S. l.], v. 3, n. 09, p. 103–115, 2019. Disponível em: https://journalsocialsciences.de/index.php/jss/article/view/523. Acesso em: 7 aug. 2026.