CURTIS, Samuel M. Principle Driven Programs: Guideposts For Change. Journal of Agricultural Education, [S. l.], v. 36, n. 1, p. 1–5, 1995. DOI: 10.5032/jae.1995.01001. Disponível em: https://jae-online.org/index.php/jae/article/view/1991. Acesso em: 22 feb. 2025.