SINGH, Ajit Kumar; KARFORMA, Sunil; MUKHOPADHYAY, Sripati. A Survey on Digital Rights Management in Distance Education. International Journal of Computer Sciences and Engineering, [S. l.], v. 7, n. 1, p. 78–81, 2025. Disponível em: https://ijcse.isroset.org/index.php/j/article/view/4229. Acesso em: 2 feb. 2026.