and 2020. Design of Expert System for Digestive Diseases Identification Using Naïve Bayes Methodology for iOS-Based Application. Inform : Jurnal Ilmiah Bidang Teknologi Informasi dan Komunikasi. 5, 2 (Aug. 2020), 92-98. DOI:https://doi.org/10.25139/inform.v5i2.2771.