Sarif Surorejo, Nugroho Adhi Santoso, and Moh. Jamaludin. “IMPLEMENTASI SISTEM PAKAR METODE CERTAINTY FACTOR UNTUK MENDIAGNOSA KERUSAKAN VESPA CLASSIC”. Nusantara Hasana Journal, vol. 2, no. 3, Aug. 2022, pp. 385-92, https://nusantarahasanajournal.com/index.php/nhj/article/view/513.