Edithstine Rani Mathew, and Lovelymol Sebastian. “Fuzzy Optimization in GH- Symmetrically Differentiable Fuzzy Function of Several Variables”. Malaya Journal of Matematik 8, no. 03 (July 1, 2020): 1295–1300. Accessed November 4, 2024. https://www.malayajournal.org/index.php/mjm/article/view/1604.