PUTRI, D. A.; DAUD, A.; ELIWARTI, E. A Survey on the Effectiveness of Online Listening Classes during the Covid-19 Pandemic at English Department of Universitas Riau. Indonesian Journal of Economics, Social, and Humanities, [S. l.], v. 5, n. 3, p. 190–202, 2023. DOI: 10.31258/ijesh.5.3.190-202. Disponível em: https://ijesh.unri.ac.id/index.php/ijesh/article/view/218. Acesso em: 12 oct. 2026.