CURTIS, Samuel M. Cost-Benefit Analysis: A Necessary Component Of Future Agricultural Educational Research. Journal of Agricultural Education, [S. l.], v. 10, n. 2, p. 17–21, 1969. DOI: 10.5032/jaatea.1969.02017. Disponível em: https://jae-online.org/index.php/jae/article/view/500. Acesso em: 22 feb. 2025.