WILLIAMS, William; CURTIS, Samuel M. On-Farm Experimentation Is A Teaching Method. Journal of Agricultural Education, [S. l.], v. 15, n. 1, p. 10–13, 1974. DOI: 10.5032/jaatea.1974.01010. Disponível em: https://jae-online.org/index.php/jae/article/view/1999. Acesso em: 13 jul. 2024.