THAKKAR, D. K. ., and P. D. PANDAGALE. “A Comparative Analysis Of Performance Of Power Supply Companies In The Duopoly Market Of Mumbai Region”. The Journal of Contemporary Issues in Business and Government, vol. 27, no. 4, Aug. 2021, pp. 357-62, https://cibgp.com/au/index.php/1323-6903/article/view/1951.