Pattnaik, Monalisha. “Optimality Test in Fuzzy Inventory Model for Restricted Budget and Space: Move Forward to a Non-Linear Programming Approach”. Yugoslav Journal of Operations Research 25, no. 3 (October 1, 2015): 457–470. Accessed July 31, 2025. https://yujor.erc.fon.bg.ac.rs/index.php/yujor/article/view/451.