ADAMS, C. M.; FORYSTH, P. B.; WARE, J. K.; MWAVITA, M.; BARNES, L. L.; KHOJASTEH, J. An empirical test of Oklahoma’s A-F grades. Education Policy Analysis Archives, [S. l.], v. 24, p. 4, 2016. DOI: 10.14507/epaa.v24.2127. Disponível em: https://epaa.asu.edu/index.php/epaa/article/view/2127. Acesso em: 30 jun. 2024.