Nagar, Neha, Himanshi Garg, and Chandra Gahan. “Characterization of Different Types of Petroleum Refinery Spent Catalyst Followed by Microbial Mediated Leaching of Metal Values”. Chemical Reports 3, no. 1 (May 11, 2021): 177-187. Accessed April 20, 2024. https://www.syncsci.com/journal/CR/article/view/CR.2021.01.002.