KESHAV DEV GUPTA, R. B. The Virtual Online Classroom: An Enhancement for Conventional Education. International Journal of Engineering Technology and Computer Research, [S. l.], v. 2, n. 1, 2014. Disponível em: https://ijetcr.org/index.php/ijetcr/article/view/20. Acesso em: 16 sep. 2026.