LE, Hanh Vy. An Investigation into Factors Affecting Concentration of University Students. Journal of English Language Teaching and Applied Linguistics , [S. l.], v. 3, n. 6, p. 07–12, 2021. DOI: 10.32996/jeltal.2021.3.6.2. Disponível em: https://al-kindipublishers.org/index.php/jeltal/article/view/1783. Acesso em: 4 aug. 2025.