Khoa, Nguyễn Đăng, and Vũ Huy Hoàng. “The Generalized Functional Dependencies Based on Rough Sets Theory”. <i>Journal of Computer Science and Cybernetics</i> 20, no. 1 (July 25, 2012): 91–100. Accessed December 5, 2025. https://vjs.ac.vn/jcc/article/view/1462.