Fiqran, Muhammad. “Expert System for Diagnosing Torch Disease in Pregnant Women With Certainty Factor and Fuzzy Logic Methods”. Journal of Computer Scine and Information Technology 8, no. 2 (April 30, 2022): 33–39. Accessed October 8, 2025. https://jcsitech-upiyptk.org/ojs/index.php/jcsitech/article/view/32.