Reis, Carlos Francisco de Sousa, Maria Simões, and Maria Flores-Tena. “Students’ Pre and During COVID-19 Perception of Higher Education Switch to Online: An Exploratory Study in Portugal”. Cypriot Journal of Educational Sciences 16, no. 5 (October 31, 2021): 2368–2377. Accessed April 16, 2024. https://un-pub.eu/ojs/index.php/cjes/article/view/6352.