Haloho, Y. R. P. ., Y. S. R. . Nur, and U. . Athiyah. “ Implementation of Certainty Factor Method for the Diagnosis of Tyla Fish Diseases”. Jurnal Mantik, vol. 7, no. 3, Nov. 2023, pp. 1912-2, doi:10.35335/mantik.v7i3.4262.