rajagukguk, dormintang rajagukguk, and S. Sitohang. “SISTEM PAKAR MENDETEKSI KERUSAKAN MESIN MOLDING TEMPERATURE SENSOR MENGGUNAKAN METODE CERTAINTY FACTOR BERBASIS WEB”. Computer and Science Industrial Engineering (COMASIE), vol. 5, no. 5, July 2021, pp. 97-105, https://ejournal.upbatam.ac.id/index.php/comasiejournal/article/view/4179.