A.Sawa, M. S., A. Naba, and H. S. Dachlan. “Bayesian Network Expert System for Early Diagnosis of Heart Diseases”. Jurnal EECCIS (Electrics, Electronics, Communications, Controls, Informatics, Systems), vol. 7, no. 2, Mar. 2014, pp. pp.171-178, doi:10.21776/jeeccis.v7i2.222.