Shri Ram, K., A. Sood, P. Sharma, and N. Singh. “Review on Learning System for Detecting Transformer Internal Faults”. 2020. International Journal of Recent Advances in Science and Technology, vol. 6, no. 3, July 2020, pp. 01-11, https://www.ijrast.com/index.php/ijrast/article/view/1.