IJAZ HUSSAIN, I. H.; SAEED , R. M. B. .; SYED, A. F. . A Study on Effectiveness of Online Learning System during COVID-19 in Sargodha. International Journal of Language and Literary Studies, [S. l.], v. 2, n. 4, p. 122–137, 2020. DOI: 10.36892/ijlls.v2i4.404. Disponível em: https://ijlls.org/index.php/ijlls/article/view/404. Acesso em: 27 nov. 2024.