Atmaja, K.J. , Putri , K.M.D. and Rasmana, I.B.G.R. 2026. Expert System Design for Laying Hen Disease Diagnosis Using Forward Chaining and Certainty Factor. Jurnal Galaksi. 3, 2 (Aug. 2026), 71–78. DOI:https://doi.org/10.70103/galaksi.v3i2.139.