Nugroho, Nurhasan, Nurdiana Handayani, Rachmat Destriana, and Tia Ernawati. 2021. “IMPLEMENTATION OF CERTAINTY FACTOR IN AN EXPERT SYSTEM FOR DIAGNOSING ORAL CANCER”. Jurnal Riset Informatika 4 (1):79-86. https://doi.org/10.34288/jri.v4i1.141.