ANGELICA, M.; FERDINAND, F. N. Expert System Based on an Ontology Method to Analyze Types of Arabica Coffee Beans. International Journal of Recent Contributions from Engineering, Science & IT (iJES), [S. l.], v. 5, n. 2, p. pp. 31–41, 2017. DOI: 10.3991/ijes.v5i2.6908. Disponível em: https://online-journals.org/index.php/i-jes/article/view/6908. Acesso em: 2 dec. 2022.