Kiamehr AK, Azar A, Nayeri MD. A Multi-Objective Optimization Model for Designing Business Portfolio in the Oil Industry. Eng. Technol. Appl. Sci. Res. [Internet]. 2018 Dec. 22 [cited 2025 Apr. 6];8(6):3657-6. Available from: https://mail.etasr.com/index.php/ETASR/article/view/2023