IMPLEMENTASI METODE FUZZY LOGIC SUGENO DAN BACKWARD CHAINING DALAM SISTEM PAKAR MENDIAGNOSIS PENYAKIT PERIODONTITIS TERHADAP PEROKOK AKTIF. JOURNAL OF SCIENCE AND SOCIAL RESEARCH, [S. l.], v. 7, n. 2, p. 741–747, 2024. DOI: 10.54314/jssr.v7i2.1834. Disponível em: https://jurnal.goretanpena.com/index.php/JSSR/article/view/1834.. Acesso em: 4 may. 2026.