Nauman Mushtaq, Hammad Hassan Mirza, Dr. M Jam e Kausar Ali Asghar, Dr. Saif UR Rehman, and Fahad Saddique. 2023. “‘Efficiency of Power Generation Companies in Pakistan: Application of Non-Parametric Approach’”. Elementary Education Online 19 (4):3486-3504. https://ilkogretim-online.org/index.php/pub/article/view/3998.