Siraj, Shajahan, Md Monarul Islam, Prokash Chandra Das, Shah Md Masum, Ismet Ara Jahan, md Aminul Ahsan, and Md Shajahan. “Removal of Chromium from Tannery Effluent Using Chitosan-Charcoal Composite”. Journal of the Bangladesh Chemical Society 25, no. 1 (September 3, 2012): 53–61. Accessed July 3, 2024. https://banglajol.info/index.php/JBCS/article/view/11774.