PFENNINGER, Simone E.; SINGLETON, David. The Age Factor in the Foreign Language Class: What Do Learners Think?. Theory and Practice of Second Language Acquisition, [S. l.], v. 2, n. 1, 2016. DOI: 10.31261/TAPSLA.3930. Disponível em: https://journals.us.edu.pl/index.php/TAPSLA/article/view/3930. Acesso em: 4 aug. 2026.