“Expert System Detection of Disease Due to Bacteria Salmonella using Android-Based Forward Chaining Method : Sistem Pakar Pendeteksi Peyakit Akibat Bakteri Salmonella Menggunakan Metode Forward Chaining Berbasis Android”, PELS, vol. 2, no. 2, June 2022, doi: 10.21070/pels.v2i2.1282.