Amit Pal, Jitendra Kumar,. “Water Quality of Two Century Old Freshwater Pond of Orai, Jalaun District Bundelkhand Region, U.P., India”. Recent Research in Science and Technology 2, no. 2 (January 7, 2010). Accessed December 17, 2025. https://updatepublishing.com/journal/index.php/rrst/article/view/373.