The applicability of the Single Registry in the Social Assistance policy of the municipalities of the macro region of Mucuri Valley/MG between 2019 and 2021. Revista de Estudos em Municipalidade, [S. l.], v. 1, n. 1, 2026. Disponível em: https://revistas.ufvjm.edu.br/index.php/resmuni/article/view/332. Acesso em: 6 may. 2026.