SHUAIBU, M.; OLADAYO, P. T. Determinants of human capital development in Africa: a panel data analysis. Oeconomia Copernicana, [S. l.], v. 7, n. 4, p. 523–549, 2016. DOI: 10.12775/OeC.2016.030. Disponível em: http://economic-research.pl/Journals/index.php/oc/article/view/62. Acesso em: 19 may. 2022.