WASET
    T. Lantharthong and  N. Rugthaicharoencheep and  A. Phayomhom,  Optimal Analysis of Grounding System Design for Distribution Substation.   journal   = {International Journal of Energy and Power Engineering}, [online]. World Academy of Science, Engineering and Technology.
    August 2014, vol. 92(8). 1308 - 1312
    [viewed 26 April 2024]. Available from: https://publications.waset.org/pdf/9999278.