THORSEN, Cecilia; JOHANSSON, Stefan; YANG HANSEN, Kajsa. Does Learning English Require Grit? Examining the Differential Effects on Grades in Core Subjects. The Journal for the Psychology of Language Learning, [S. l.], v. 3, n. 2, p. 61–85, 2021. Disponível em: https://mail.jpll.org/index.php/journal/article/view/73. Acesso em: 8 oct. 2025.