DR. SURENDER SINGH. “Changing Roles and Responsibilities of Librarians in the Digital Era: Opportunities and Challenges”. International Journal of Engineering, Science and Humanities, [S. l.], v. 14, n. 1, p. 8–11, 2024. Disponível em: https://www.ijesh.com/j/article/view/76. Acesso em: 8 oct. 2025.