School efficiency and socioeconomic differences: on the results of assessment exams of the Quality of Education in Chile . Educação e Pesquisa, [S. l.], v. 28, n. 2, p. 25–39, 2002. DOI: 10.1590/S1517-97022002000200003. Disponível em: https://www.revistas.usp.br/ep/article/view/27885.. Acesso em: 2 maio. 2024.