Bandyopadhyay, R. K., and Ravi Shanker. “Association of Microbes With Arsenic-Bearing Siderite Concretions from Shallow Aquifer Sediments of Bengal Delta and Its Implications”. Journal of Geological Society of India 60, no. 3 (September 1, 2002): 349–350. Accessed June 3, 2024. http://www.geosocindia.com/index.php/jgsi/article/view/83530.