YUE LINA. Application of Data Based Hierarchical Teaching Method in English Flipped Classroom in Undergraduate Colleges. CONVERTER, [S. l.], v. 2021, n. 7, p. 1039-1046, 2021. Disponível em: http://converter-magazine.info/index.php/converter/article/view/596. Acesso em: 3 may. 2024.