Thermo-Catalytic Treatment of Used Lubricant by Using Cobalt Oxalate as Catalyst (1% by Wt.). Int J Sci Res Sci & Technol [Internet]. 2024 May 30 [cited 2024 Dec. 22];11(3):491-7. Available from: https://ijsrst.com/index.php/home/article/view/IJSRST24112111