Fatima M. Kabbashi and  Abdalla M. Abdalla and  Hussam K. Hamad and  Elias S. Hassan,  Methane Production from Biomedical Waste (Blood).   journal   = {International Journal of Energy and Environmental Engineering}, [online]. World Academy of Science, Engineering and Technology.
    October 2018, vol. 143(11). 642 - 649
    [viewed 15 October 2019]. Available from: https://publications.waset.org/pdf/10009751.