Ban Đoàn V, Tuấn TC, Thắng Đoàn V. Fuzzy dependencies in approximation semantic based on the hedge algebras approach. JCC [Internet]. 2013 Apr. 24 [cited 2024 Apr. 27];29(1):66-78. Available from: https://vjs.ac.vn/index.php/jcc/article/view/2885