WASET
    Kitti Leangkrua,  Power Transformer Risk-Based Maintenance by Optimization of Transformer Condition and Transformer Importance.   journal   = {International Journal of Energy and Power Engineering}, [online]. World Academy of Science, Engineering and Technology.
    February 2018, vol. 135(3). 202 - 206
    [viewed 16 April 2024]. Available from: https://publications.waset.org/pdf/10008721.