BIASI, V. Digital learning and virtual educational relationship. An empirical study on the effectiveness of audio-video systems in the on-line teaching for high school and university. Formazione & insegnamento, Lecce-Brescia (IT), v. 15, n. 1, p. 67–80, 2017. Disponível em: https://ojs.pensamultimedia.it/index.php/siref/article/view/2165. Acesso em: 21 dec. 2024.