Das, Mohitosh, and Sudip Ranjan Hatua. “An Information Retrieval System Based on Google Earth With Special Reference to Ganga River in West Bengal Jurisdiction”. Journal of Information and Knowledge 56, no. 4 (August 28, 2019): 193–200. Accessed February 2, 2026. https://www.srels.org/index.php/sjim/article/view/125996.