Hussein Abdulhadi Mahdi; Bushra Saadoon Mohammed; Ahmed Fayadh Saleh Hammam; Mujahed Mutlaq AbdulRahman; Baker Mohammed Khalil; Viktor Sukhomlyn. Sustainable Supply Chain Management in a Circular Economy: Legal Barriers, Environmental Challenges, and a Composite Performance Index. Environ. Soc. Psychol. 2025, 10, ESP-3953.