F. D. Y. Fira, Husnul Khair, and Kristina Annatasia Br Sitepu, “Expert System for Diagnosing Gastric Diseases with the Application of the Fuzzy Logic Sugeno Method (Case Study: Delia General Hospital)”, j. of artif. intell. and eng. appl., vol. 5, no. 1, pp. 1627–1632, Oct. 2025.