DAVIS, K.; ROGERS, D.; HARRIGAN, M. A review of state policies on principal professional development. Education Policy Analysis Archives, [S. l.], v. 28, p. 24, 2020. DOI: 10.14507/epaa.28.4421. Disponível em: https://epaa.asu.edu/index.php/epaa/article/view/4421. Acesso em: 14 aug. 2022.