S. H. . Bahrololum, G. Abbas pour Esfeden, K. . Fathi, and M. . . Modiri, “A Performance Evaluation Model for the Logistics Service Companies of the Ministry of Oil Using an Integrated Approach of Data Envelopment Analysis and the Markowitz Method”, JMEDDA, vol. 2, no. 1, pp. 13–28, May 2025, doi: 10.61838/medda.2.1.2.