YANG, L.; SUN, T.; LIU, Y. A Bibliometric Investigation of Flipped Classroom Research during 2000-2015. International Journal of Emerging Technologies in Learning (iJET), [S. l.], v. 12, n. 06, p. pp. 178–186, 2017. DOI: 10.3991/ijet.v12i06.7095. Disponível em: https://online-journals.org/index.php/i-jet/article/view/7095. Acesso em: 7 feb. 2023.