Two Decades of Online Teaching: Trends, Challenges, and Future Directions. CHIMIA, [S. l.], v. 77, n. 10, p. 683–687, 2023. DOI: 10.2533/chimia.2023.683. Disponível em: https://www.chimia.ch/chimia/article/view/2023_683. Acesso em: 21 dec. 2024.