KHÔI, L. H. A heuristic model based on the certainty factor approach for the expert system. Journal of Computer Science and Cybernetics, [S. l.], v. 17, n. 3, p. 15–24, 2012. DOI: 10.15625/1813-9663/17/3/2621. Disponível em: https://vjs.ac.vn/index.php/jcc/article/view/2621. Acesso em: 2 may. 2024.