Ashok Maruvada, and Ramana Pilla. “A REVIEW ON THE FREQUENCY RESTORATION IN A TWO AREA POWER SYSTEM”. EPRA International Journal of Research and Development (IJRD) 7, no. 9 (September 23, 2022): 103–107. Accessed May 19, 2024. http://www.eprajournals.net/index.php/IJRD/article/view/910.