RICH, Jamie; DUNCAN, Dennis W.; NAVARRO, Maria; RICKETTS, John C. Examining Differences in Middle School Student Achievement on a Criterion-Referenced Competency Test (CRCT) in Science. Journal of Agricultural Education, [S. l.], v. 50, n. 4, p. 14–24, 2009. DOI: 10.5032/jae.2009.04014. Disponível em: https://jae-online.org/index.php/jae/article/view/1293. Acesso em: 14 jul. 2024.