ARNOLD, J. J. Challenges for Online Learning and Teaching: A Subjective Academic Narrative. International Journal of Learning, Teaching and Educational Research, [S. l.], v. 12, n. 3, p. 1–12, 2015. Disponível em: https://ijlter.myres.net/index.php/ijlter/article/view/1045. Acesso em: 13 aug. 2026.