Aditia, M. R., Djesmedi, D., Firdalius, F., & Marfalino, H. (2022). EXPERT SYSTEM TO DIAGNOSE DIGESTIVE DISEASES USING CERTAINTY FACTOR. JURTEKSI (jurnal Teknologi Dan Sistem Informasi), 9(1), 97 - 102. https://doi.org/10.33330/jurteksi.v9i1.1880