STEWART, William H.; BAEK, Youngkyun; LOWENTHAL, Patrick R. From Emergency Remote Teaching (ERT) to Sustained Remote Teaching (SRT): A comparative semester analysis of exchange students’ experiences and perceptions of learning online during COVID-19. Online Learning, Boston, MA, v. 26, n. 2, 2022. DOI: 10.24059/olj.v26i2.2661. Disponível em: https://olj.onlinelearningconsortium.org/index.php/olj/article/view/2661. Acesso em: 3 apr. 2026.