“Sustainable Production-Inventory Model With MultiMaterial, Quality Degradation, and Probabilistic Demand: From Bibliometric Analysis to A Robust Model”. Indonesian Journal of Science and Technology 8, no. 2 (November 20, 2023): 171–196. Accessed July 7, 2025. https://ejournal.kjpupi.id/index.php/ijost/article/view/15.