CHENG, M. .; CHEN, P. . Applying PERMA to Develop College Students’ English Listening and Speaking Proficiency in China. International Journal of English Language and Literature Studies, [S. l.], v. 10, n. 4, p. 333–350, 2021. DOI: 10.18488/journal.23.2021.104.333.350. Disponível em: https://archive.aessweb.com/index.php/5019/article/view/4386. Acesso em: 5 may. 2024.