D. Hephzibah and  P. Kumaran and  N. M. Saifuddin,  Comparison of the Effects of Continuous Flow Microwave Pre-treatment with Different Intensities on the Anaerobic Digestion of Sewage Sludge for Sustainable Energy Recovery from Sewage Treatment Plant.   journal   = {International Journal of Bioengineering and Life Sciences}, [online]. World Academy of Science, Engineering and Technology.
    October 2015, vol. 108(12). 1210 - 1214
    [viewed 27 April 2024]. Available from: https://publications.waset.org/pdf/10002993.