KABATANTSHI, TUJIBIKILE Alain. Extra-professional activities and the performance of workers in Democratic Republic of Congo (Case study carried out in Lubumbashi). International Journal of Social Sciences and Scientific Studies, [S. l.], v. 1, n. 4, p. 89–99, 2021. Disponível em: https://ijssass.com/index.php/ijssass/article/view/27. Acesso em: 13 may. 2026.