Despa Prasetyo Wardoyo, Fatma Sari Hutagalung. Development Of A Web-Based Expert System For Healthy Diet Menu Recommendations Using The Certainty Factor Method. JSISNU [Internet]. 2025 May 30 [cited 2026 Aug. 14];2(1):86-95. Available from: https://journal.isnu-sumut.org/index.php/jsisnu/article/view/1258