Satria, B. ., Nurfiah, N., & Prakasa, B. . (2026). Certainty Factor Algorithm Approach for Early Stage of Cattle Disease Diagnosis Using Mobile-Based Expert System. Jurnal Teknik Informatika (Jutif), 7(3), 2294–2306. https://doi.org/10.52436/1.jutif.2026.7.3.5374