LONG, Gilbert A. Cooperative Learning: A New Approach. Journal of Agricultural Education, [S. l.], v. 30, n. 2, p. 2–9, 1989. DOI: 10.5032/jae.1989.02002. Disponível em: https://jae-online.org/index.php/jae/article/view/1030. Acesso em: 11 aug. 2024.