ZHONG, Linling. The Enhancement of Student Learning Engagement in EFL Speaking Flipped Classrooms. Transactions on Social Science, Education and Humanities Research, London, U.K., v. 6, p. 343–349, 2024. DOI: 10.62051/p2bgj445. Disponível em: https://wepub.org/index.php/TSSEHR/article/view/877. Acesso em: 2 may. 2026.