Sharmina Begum and  M. G. Rasul and  Delwar Akbar,  An Investigation on Thermo Chemical Conversions of Solid Waste for Energy Recovery.   journal   = {International Journal of Environmental and Ecological Engineering}, [online]. World Academy of Science, Engineering and Technology.
    February 2012, vol. 62(2). 74 - 80
    [viewed 11 April 2021]. Available from: https://publications.waset.org/pdf/9976.