Gultom, Farida, and Wita Clarisa Ginting. “Sistem Pakar Mendiagnosa Penyakit Lambung Menggunakan Metode Certainty Factor Berbasis Web”. Elektriese: Jurnal Sains dan Teknologi Elektro 14, no. 01 (August 1, 2024): 69–78. Accessed August 5, 2026. https://itscience-indexing.com/jurnal/index.php/elektriese/article/view/4401.