Kamal, M., Alarjani, A., Haq, A., Yusufi, F.N.K. and Ali, I. 2021. Multi-objective transportation problem under type-2 trapezoidal fuzzy numbers with parameters estimation and goodness of fit. Transport. 36, 4 (Nov. 2021), 317-338. DOI:https://doi.org/10.3846/transport.2021.15649.