Roring, Aprilia Adelina, Gilbert Josua Mangkay, Jean Stella Saragih, Ricat Abetnego Sundari, Jhosua Allesandro Tingon, Paul Aleksander Mundung, and Yulisa Aprianti. “Development of a Web-Based Expert System for Cancer and GERD Diagnosis”. Journal of Research and Investigation in Education 4, no. 2 (August 30, 2026): 58–63. Accessed August 31, 2026. https://residu.org/index.php/residu/article/view/233.