Lee, J. W., K. S. Ku Ismail, M. F. M. Yusop, and M. A. Ahmad. “Effect of Microwave-Assisted CO2 Pyrolysis on the Production of Activated Carbon from Confiscated Cigarettes”. International Journal of Biomass Utilization and Sustainable Energy (IJBUSE), vol. 1, July 2023, doi:10.58915/ijbuse.v1.2023.242.