Desi Maziyah, Efson Sairi, Entus Hilman Mutaqin, and R. Rida Sakra Muhammad. “Closing the Loop: A Circular Supply Chain Framework for Sustainable PET Beverage Packaging in Indonesia”. International Journal of Global Optimization and Its Application 4, no. 1 (March 31, 2025): e511. Accessed April 4, 2026. https://journal.srnintellectual.com/index.php/ijgoia/article/view/511.