KHASHUNIKA, J.A.L; YATIGAMMANA, M.R.K.N; LAKMAL K.G.P. Challenges And Opportunities In Online Education In Sri Lanka During The Covid-19 Pandemic: Evidence From The University Of Kelaniya. International Journal of Educational Research & Social Sciences , [S. l.], v. 2, n. 4, p. 832–849, 2021. DOI: 10.51601/ijersc.v2i4.143. Disponível em: https://ijersc.org/index.php/go/article/view/143. Acesso em: 7 nov. 2024.