RANCANG BANGUN SISTEM PAKAR DIAGNOSA PENYAKIT KULIT BERBASIS MOBILE DENGAN MENGGUNAKAN METODE BACKWARD CHAINING. JOURNAL OF SCIENCE AND SOCIAL RESEARCH, [S. l.], v. 2, n. 2, p. 68–73, 2019. DOI: 10.54314/jssr.v2i2.360. Disponível em: https://jurnal.goretanpena.com/index.php/JSSR/article/view/360.. Acesso em: 4 may. 2026.