LIU, Yuyu. Recerca en temps de la COVID-19. Bellaterra: Journal of Teaching and Learning Language and Literature, [S. l.], v. 13, n. 4, p. e990, 2021. DOI: 10.5565/rev/jtl3.990. Disponível em: https://revistes.uab.cat/jtl3/article/view/v13-n4-liu. Acesso em: 18 jul. 2026.