P., Geetha, Wilson K. Cherukulath, and R. Sivakumar. “Facilitating E-Learning through National Knowledge Network”. DESIDOC Journal of Library & Information Technology 37, no. 2 (March 29, 2017): 91–97. Accessed June 27, 2025. https://publications.drdo.gov.in/ojs/index.php/djlit/article/view/10958.