Paratane, P. M., and A. K. Bit. “Tolerance Approach to Sensitivity Analysis in Multiobjective Transportation Problem”. The Journal of the Indian Mathematical Society 87, no. 3-4 (July 1, 2020): 178–192. Accessed April 30, 2024. http://informaticsjournals.com/index.php/jims/article/view/25450.