MURPHY, Tim H. A Quantitative Analysis Of Instructor-Student Verbal Interaction In A Two-Way Audio Two-Way Vidoe Distance Education Program. Journal of Agricultural Education, [S. l.], v. 40, n. 3, p. 50–60, 1999. DOI: 10.5032/jae.1999.03050. Disponível em: https://jae-online.org/index.php/jae/article/view/878. Acesso em: 21 feb. 2025.