Ibrahem AL-Sultany O, Abdulrahman Jarjies O. Data Envelopment Analysis Models to Measure the Relative and Scale Efficiency of Educational Institutions (Tikrit University as A Model). IQJOSS [Internet]. 2025 Jun. 1 [cited 2025 Oct. 21];22(1):168-80. Available from: https://stats.uomosul.edu.iq/index.php/stats/article/view/29260