1. Di Pietro, G., Biagi, F., DinisMota Da Costa, P., Karpinski, Z., and Mazza, J. (2023, January 07). The Likely Impact of COVID-19 on Education: Reflections Based on the Existing Literature and Recent International Datasets (2020) EUR 30275 EN, Publications Office of the European Union, Luxembourg, ISBN 978-92-76-19937-3, JRC121071. Available online: https://publications.jrc.ec.europa.eu/repository/handle/JRC121071.
2. UNESCO (2023, January 07). Supporting Learning Recovery One Year into COVID-19. Available online: https://apa.sdg4education2030.org/covid19/supporting-learning-recovery-one-year-covid-19-global-education-coalition-action.
3. Center for Studies and Documentation of Federation of Secondary Education Officials (KEMETE) (2023, January 07). Aspects of e-Learning During the Pandemic: Educational Inequalities and Implications for Labor Rights. (In Greek).
4. Synchronous and asynchronous communication in Distance Learning: A review of the literature;Watts;Q. Distance Educ.,2016
5. The effects of student engagement, student satisfaction, and perceived learning in online learning;Gray;Int. J. Educ. Leadersh. Prep.,2016