HAI, H.; CUONG, C. A mobile-based course grade management system with a multi-layer security architecture integrating hybrid OCR. Tay Nguyen Journal of Sciences, [S. l.], v. 20, n. 4, p. 24–34, 2026. Disponível em: https://tnjos.vn/index.php/tckh/article/view/740. Acesso em: 7 sep. 2026.