Validation of Questionnaire on Bilingualism in International Schools: Using the Content Validity Coefficient. Research, Society and Development, [S. l.], v. 11, n. 11, p. e213111133477, 2022. DOI: 10.33448/rsd-v11i11.33477. Disponível em: https://rsdjournal.org/rsd/article/view/33477. Acesso em: 5 dec. 2025.