Ali , M., A. Iqba1, R. Sultana, K. Towheed, M. U. Naeem, and M. Ali Karim. “Purification of Crude Glycerol Recovered From Fish Processing Waste Biodiesel Process”. International Journal of Economic and Environmental Geology, vol. 15, no. 2, Apr. 2024, pp. 1-8, doi:10.46660/ijeeg.v15i2.258.