Goel, Simmi, and Hardeep Singh. “Removal of Colour from Biomethanated Distillery Waste by Treatment With Activated Sawdust”. Journal of Advanced Laboratory Research in Biology 3, no. 3 (July 1, 2012): 171-174. Accessed August 14, 2020. https://e-journal.sospublication.co.in/index.php/jalrb/article/view/121.