Rabbani, Hafizh Hasan Alauddin, et al. “SISTEM PAKAR DIAGNOSA AWAL PENYAKIT JANTUNG MENGGUNAKAN METODE FORWARD CHAINING DAN CERTAINTY FACTOR BERBASIS WEBSITE”. INFOTECH Journal, vol. 9, no. 2, Aug. 2023, pp. 442-51, doi:10.31949/infotech.v9i2.6401.