Walangitan, Rafaely Hesky, Patmawati Hasan, and Emy Lenora Tatuhey. “Sistem Pakar Diagnosis Dini Penyakit Lambung Menggunakan Metode Certainty Factor”. Progresif: Jurnal Ilmiah Komputer 20, no. 2 (August 4, 2024): 605–617. Accessed August 27, 2026. https://ojs.stmik-banjarbaru.ac.id/index.php/progresif/article/view/1941.