HIROYUKI, O. The Integration of 21st Century Skill and Virtual Learning with COVID-19. AsiaCALL Online Journal, [S. l.], v. 12, n. 3, p. 22-27, 2021. Disponível em: https://asiacall.info/acoj/index.php/journal/article/view/30. Acesso em: 27 apr. 2024.