Abdullah, Syahrul Mubarak, Hariani Ma’tang Pakka, Andi Syarifuddin, and Ahmed Saeed Alghamdi. “Expert System Implementation of the Certainty Factor Method for Smartphone Damage Diagnosis”. International Journal Of Electrical Engineering And Intelligent Computing 1, no. 2 June (June 15, 2024): 8–21. Accessed July 12, 2026. https://ejournal.unkhair.ac.id/index.php/ijeeic/article/view/7810.