FIRDOUS UL RASHID. Study and Analysis of Knowledge Representation methods in Expert System. International Journal of Emerging Trends in Science and Technology, [S. l.], v. 4, n. 09, p. 6022–6025, 2017. Disponível em: http://ijetst.in/index.php/ijetst/article/view/1407. Acesso em: 23 dec. 2024.