ABO-SINNA, MAHMOUD A, and AZZA H AMER. “TOPSIS Approach for Solving Bi-Level Non-Linear Fractional MODM Problems”. JOURNAL OF ADVANCES IN MATHEMATICS 13, no. 4 (February 9, 2018): 7353–7370. Accessed April 25, 2024. https://rajpub.com/index.php/jam/article/view/6243.