VUONG, L. T. On the application of fuzzy set theory in relational database. Journal of Computer Science and Cybernetics, [S. l.], v. 1, n. 4, p. 10–15, 2015. DOI: 10.15625/1813-9663/1/4/6699. Disponível em: https://vjs.ac.vn/index.php/jcc/article/view/6699. Acesso em: 4 may. 2024.