WASET
    Yash Pal and  A.Swarup and  Bhim Singh,  Star-Hexagon Transformer Supported UPQC.   journal   = {International Journal of Electrical and Computer Engineering}, [online]. World Academy of Science, Engineering and Technology.
    January 2011, vol. 49(1). 14 - 19
    [viewed 26 April 2024]. Available from: https://publications.waset.org/pdf/13464.