G.L. CARTER JR. The Project-A basis for effective teaching/learning. Indian Journal of Extension Education, India, v. 1, n. 2, p. 119–125, 2024. DOI: 10.48165/. Disponível em: https://epubs.icar.org.in/index.php/IJEE/article/view/159399. Acesso em: 23 oct. 2025.