Takshak V Rabari , Viral R Avalani , Kishan V Dave , Nimish R Suchak. “Load Flow Analysis on 400 KV Sub-Station- A Case Study”. International Journal of Emerging Trends in Science and Technology, Vol. 2, no. 12, Dec. 2015, pp. 3370-5, http://igmpublication.org/ijetst.in/index.php/ijetst/article/view/961.