A. K. Pradhan and  M. K. Mohanty and  S. K. Kar,  The Techno-Economic and Environmental Assessments of Grid-Connected Photovoltaic Systems in Bhubaneswar, India.   journal   = {International Journal of Computer and Systems Engineering}, [online]. World Academy of Science, Engineering and Technology.
    May 2014, vol. 88(4). 269 - 275
    [viewed 18 October 2019]. Available from: https://publications.waset.org/pdf/9998395.