Online Tests in the Trend of Education 4.0: An Empirical Study in Mathematics at High Schools of Can Tho City. Journal of Contemporary Educational Policies and Practices, [S. l.], v. 5, n. 1, p. 24–32, 2021. DOI: 10.52296/vje.2021.29. Disponível em: https://ojs35.mpos.io.vn/index.php/journal/article/view/29. Acesso em: 3 tháng 4. 2026.