EL GHMARI, I., M. . OUKASSI, and O. . EL GHMARI. “L’apport Du Secteur Informel Pour l’économie”. International Journal of Economic Studies and Management (IJESM), vol. 1, no. 3, Dec. 2021, pp. 269-78, doi:10.52502/ijesm.v1i3.199.