NHA, V. T. T. Understanding validity and reliability from qualitative and quantitative research traditions. VNU Journal of Foreign Studies, [S. l.], v. 37, n. 3, 2021. DOI: 10.25073/2525-2445/vnufs.4672. Disponível em: https://jfs.ulis.vnu.edu.vn/index.php/fs/article/view/4672. Acesso em: 20 apr. 2024.