WASET
    Raj Kumar Rajak and  Bharat Mishra,  Customized Cow’s Urine Battery Using MnO2 Depolarizer.   journal   = {International Journal of Energy and Environmental Engineering}, [online]. World Academy of Science, Engineering and Technology.
    October 2017, vol. 131(11). 777 - 780
    [viewed 26 April 2024]. Available from: https://publications.waset.org/pdf/10008217.