Sianipar, S. N. S. D. M., J. Hutahaean, and M. Dewi. “THE EARLY DETECTION OF RESPIRATORY SYSTEM DISEASES BY USING THE CERTAINTY FACTOR METHOD”. Jurnal Teknik Informatika (Jutif), Vol. 3, no. 3, June 2022, pp. 619-30, doi:10.20884/1.jutif.2022.3.3.249.