Minh, Hồ Anh, and Huỳnh Văn Nam. “On the Relatively Pseudo-Complement Operation in Finite RHAs”.
Journal of Computer Science and Cybernetics
14, no. 4 (March 23, 2016): 12–18. Accessed April 28, 2025. https://vjs.ac.vn/jcc/article/view/7938.