LIU, Yajuan. Design and Application of a Virtual Classroom System in Major Courses in Industrial Arts. International Journal of Emerging Technologies in Learning (iJET), [S. l.], v. 10, n. 5, p. pp. 40–44, 2015. DOI: 10.3991/ijet.v10i5.4796. Disponível em: https://online-journals.org/index.php/i-jet/article/view/4796. Acesso em: 5 may. 2024.