Nouri, Hossein, Salmanpour zonouz , Ali, Eskandari Sabzi, Sima, MORADI, MEHDI. “An Empirical Analysis of the Interrelationship between Copper Industry Output and Macroeconomic Indicators: A Simultaneous Equations System Approach.” Rahbord-e-Tousee, vol. 22, no. 85, 2026, pp. 53-76.