R R Ray, Dr. “Characterization of a Hexavalent Chromium Reducing Bacterial Strain Isolated from Tannery Effluents of Kolkata”. International Journal of Pharmaceutical & Biological Archive 4, no. 2 (October 19, 2013). Accessed May 9, 2024. http://ijpba.info/index.php/ijpba/article/view/1048.