Biswas, S. K., G. C. Ray, C. K. Mandal, and A. Misra. “Record and Abundance of Earthworms at Ballavpur Wildlife Sanctuary, Birbhum, West Bengal”. Records of the Zoological Survey of India 108, no. 3 (September 1, 2008): 97–108. Accessed September 7, 2024. https://recordsofzsi.com/index.php/zsoi/article/view/159049.