BENYAKHLAF , W.; LOTFI , M. Impact of Covid-19 on Productivity of Human Capital. Revue Française d’Economie et de Gestion, [S. l.], v. 2, n. 12, 2021. Disponível em: https://www.revuefreg.fr/index.php/home/article/view/478. Acesso em: 23 sept. 2026.