Khang, Trần Đình, and Đinh Khắc Dũng. “Contructing the Generalized Type-Reduction for Type 2 Fuzzy Sets”. <i>Journal of Computer Science and Cybernetics</i> 19, no. 4 (July 27, 2012): 315–328. Accessed November 4, 2025. https://jcc.vast.vn/jcc/article/view/1540.