Duan Huanyun and  Xu Rui and  Li Jianchang and  Yuan Yage and  Wang Qiuxia and  Nomana Intekhab Hadi,  Biogas Yield Potential Research of Tithonia diversifolia in Mesophilic Anaerobic Fermentation in China.   journal   = {International Journal of Environmental and Ecological Engineering}, [online]. World Academy of Science, Engineering and Technology.
    July 2013, vol. 79(7). 522 - 525
    [viewed 19 March 2024]. Available from: https://publications.waset.org/pdf/16574.