Khang, Trần Đình, and Đinh Khắc Dũng. “Fuzzy Resoning With Type-2 Hedge Algebra Based Fuzzy Sets”. Journal of Computer Science and Cybernetics 19, no. 1 (July 26, 2012): 28–43. Accessed May 3, 2024. https://vjs.ac.vn/index.php/jcc/article/view/1518.