HADISTIO, R. R.; SIMAMORA, W. S.; MUIS, A. Development of Android-Based Smart System for Gingivitis Diagnosis Using Certainty Factor. Sinkron : jurnal dan penelitian teknik informatika, [S. l.], v. 8, n. 1, p. 556-563, 2024. DOI: 10.33395/sinkron.v9i1.13361. Disponível em: https://jurnal.polgan.ac.id/index.php/sinkron/article/view/13361. Acesso em: 7 oct. 2025.