Pishdar M, Pourghader Chobar A, Gholi Beik N. Transition of the pharma supply chain towards intelligent sustainability according to the effect of circular supply chain practices in Industry 4.0 and transformational leadership. DSIS. 2025;1(2):53-70. Accessed September 16, 2026. https://dsisj.com/index.php/dsisj/article/view/10