Hutasuhut DIG, Ommi Alfina, Nita Syahputri, Sihotang SF, Efani Desi, Siti Aliyah. Expert System Detects Boiler Engine Damage Using Certainty Factors. u-net [Internet]. 2021Aug.18 [cited 2025Nov.10];5(2):67-5. Available from: https://ejurnal.univalabuhanbatu.ac.id/index.php/u-net/article/view/350