KLAPPROTH, F. .; MARTIN, R. . Predictors of the Drop in School Marks in Secondary School: Evidence for Effects of Students’ Socio-Demographic Background. International Journal of Education and Practice, [S. l.], v. 6, n. 3, p. 147–166, 2018. DOI: 10.18488/journal.61.2018.63.147.166. Disponível em: https://archive.conscientiabeam.com/index.php/61/article/view/568. Acesso em: 22 jul. 2024.