Tarigan, Kiki Dea Ananda, Magdalena Simanjuntak, and Yani Maulita. “EXPERT SYSTEM OF PREECLAMPSIA DIAGNOSIS USING CERTAINTY FACTOR METHOD”. Journal of Mathematics and Technology (MATECH) 3, no. 2 (September 19, 2024): 169–179. Accessed December 7, 2025. https://www.journal.binainternusa.org/index.php/matech/article/view/176.