Effectiveness of Online Learning in English Subject at Pangkalpinang state Junior High School during Covid-19 Pandemic. Jurnal Sustainable, [S. l.], v. 6, n. 2, p. 666–681, 2023. DOI: 10.32923/kjmp.v6i2.3623. Disponível em: https://rumahjurnal.iainsasbabel.ac.id/sus/article/view/3623. Acesso em: 14 nov. 2025.