TOURS , Baliku; STAFF, Travel. English Expressions Used in Handling Complaint Emails. KnE Social Sciences, [S. l.], v. 7, n. 10, p. 128–134, 2022. DOI: 10.18502/kss.v7i10.11280. Disponível em: https://knepublishing.com/index.php/KnE-Social/article/view/11280. Acesso em: 11 oct. 2025.