Informal Sector and Nigerian Economic Prospects: The Covid–19 Experience. European Journal of Business and Management Research, [S. l.], v. 5, n. 4, 2020. DOI: 10.24018/ejbmr.2020.5.4.397. Disponível em: https://www.ejbmr.org/index.php/ejbmr/article/view/397. Acesso em: 5 nov. 2025.