BENGHEDFA, CHRIFA. The Migration of the rare competencies in the Arab world A literature review. Human Resources Development Research, [S. l.], v. 21, n. 01, p. 130–139, 2026. Disponível em: https://rdrh.univ-setif2.dz/index.php/rdrh/article/view/98. Acesso em: 13 nov. 2026.