Singh, Dwendra K., Bhupendra K. Singh, and Yogendra P. Dubey. “Expert Systems and Their Application in Library and Information Science”. DESIDOC Journal of Library & Information Technology 16, no. 4 (January 1, 2003). Accessed July 3, 2024. https://publications.drdo.gov.in/ojs/index.php/djlit/article/view/3272.