Ananda Safitri, et al. “Analisa Sistem Pakar Diagnosa Penyakit Lambung Menggunakan Metode Forward Chaining ”. BIN : Bulletin Of Informatics, vol. 1, no. 1, July 2023, pp. 16-23, https://www.ojs.jurnalmahasiswa.com/index.php/bin/article/view/1.