THUẦN, H.; ĐỊNH, N. V. The relationship between direct determination and FD-graph. Journal of Computer Science and Cybernetics, [S. l.], v. 18, n. 1, 2012. DOI: 10.15625/1813-9663/18/1/2406. Disponível em: https://vjs.ac.vn/index.php/jcc/article/view/2406. Acesso em: 2 may. 2024.