USPAYANTI, Rezky. Challenges and Teaching Strategies of English Teachers in Industrial Revolution 4.0 Era. Eduvelop: Journal of English Education and Development , [S. l.], v. 4, n. 2, p. 88–98, 2021. DOI: 10.31605/eduvelop.v4i2.894. Disponível em: https://ojs.unsulbar.ac.id/index.php/eduvelop/article/view/894. Acesso em: 17 apr. 2026.