LEVINGS, J. 4-H Project Learning: 4H343/4H343, 8/2014. EDIS, Gainesville, FL, v. 2014, n. 7, 2014. DOI: 10.32473/edis-4h343-2014. Disponível em: https://journals.flvc.org/edis/article/view/131686. Acesso em: 29 mar. 2024.