HANDFORD, V.; LEITHWOOD, K. School District Contributions to Students’ Math and Language Achievement. International Journal of Education Policy and Leadership, [S. l.], v. 14, n. 9, 2019. DOI: 10.22230/ijepl.2019v14n9a863. Disponível em: https://ijepl.journals.publicknowledgeproject.org/index.php/ijepl/article/view/863. Acesso em: 19 feb. 2025.