Narulita, Dwi, and Y Yuhandri. “Expert System in Analyzing the Accuracy Level of Dental Erosion Severity Using Certainty Factor Method”. Jurnal Informasi dan Teknologi 3, no. 4 (December 31, 2021): 239-244. Accessed November 28, 2025. https://jidt.org/jidt/article/view/160.