Gusmaliza, D., R. Masdalipa, and Y. Yadi. “Sistem Pakar Diagnosa Penyakit ISPA Dengan Metode Forward Chaining”. Building of Informatics, Technology and Science (BITS), Vol. 3, no. 4, Mar. 2022, pp. 738-46, doi:10.47065/bits.v3i4.1203.