HAZEM, M. REGIONAL CONVERGENCE IN NORTH AFRICA REGIONS : PARAMETRIC AND NON PARAMETRIC APPROACHES . International Journal of Business and Social Science Research, [S. l.], v. 2, n. 1, p. 13–19, 2021. DOI: 10.47742/ijbssr.v2n1p2. Disponível em: https://ijbssrnet.com/index.php/ijbssr/article/view/39. Acesso em: 7 dec. 2021.