CLARK, Lynn; WILLIAMS, Gareth John. English Language Proficiency in Radiotelephony: A survey about its effect on the safety and efficiency of aviation. The Especialist, [S. l.], v. 41, n. 4, 2020. DOI: 10.23925/2318-7115.2020v41i4a9. Disponível em: https://revistas.pucsp.br/index.php/esp/article/view/50799. Acesso em: 5 dez. 2025.