PERKINS, Gwen Kirtley. A Study Of Classroom Communication Problems As Perceived By Students In Agricultural And Extension Education. Journal of Agricultural Education, [S. l.], v. 19, n. 3, p. 25–30, 1978. DOI: 10.5032/jaatea.1978.03025. Disponível em: https://jae-online.org/index.php/jae/article/view/627. Acesso em: 14 sep. 2024.