SIRAIT, H. A Basic Elements and Characteristics in Building an Expert System. Journal Neosantara Hybrid Learning, [S. l.], v. 1, n. 3, p. 227–248, 2023. DOI: 10.55849/jnhl.v1i3.337. Disponível em: https://journal.ypidathu.or.id/index.php/jnhl/article/view/337. Acesso em: 25 jul. 2025.