First Aid Diagnosis Expert System Using the Certainty Factor Method. JOSAR (Journal of Students Academic Research), [S. l.], v. 6, n. 1, p. 137–146, 2021. DOI: 10.35457/josar.v6i1.1463. Disponível em: https://ejournal.unisbablitar.ac.id/index.php/josar/article/view/1463. Acesso em: 31 jan. 2026.