PANI, A. K.; SRIMANNARAYANA , M.; PREMARAJAN, R. . e-Learning: Challenges and Solutions – A Case Study. International Journal of Learning, Teaching and Educational Research, [S. l.], v. 13, n. 4, p. 33–40, 2015. Disponível em: https://ijlter.myres.net/index.php/ijlter/article/view/1006. Acesso em: 27 aug. 2026.