BÜYÜKKIDIK S. Analyzing TALIS Indicators and PISA Results with Data Envelopment: Comparison of EMS, DEAP and R Software. Int. J. of Cont. Edu. Res. [Internet]. 2022 Sep. 30 [cited 2024 Nov. 21];9(3):492-508. Available from: https://ijcer.net/index.php/pub/article/view/253