Sanjaranipour , N., Atabi, F., Momeni , M. ., Ghodousi , J. . and Lahijanian , A. . (2022) “Investigating the Efficiency of Combined Cycle Power Plants with the Data Envelopment Analysis Process (with an Emphasis on Air Pollution)”, Geomatics and Environmental Engineering, 16(2), pp. 111–125. doi: 10.7494/geom.2022.16.2.111.