Malekmohammadi, Najmeh. “The Application of Data Envelopment Analysis in Fuzzy Queuing Models”. Fuzzy Optimization and Modeling Journal (FOMJ) 1, no. 2 (October 1, 2020): 8–15. Accessed August 9, 2026. https://oiccpress.com/fomj/article/view/6432.