Ishak, Azril, Sarah Nadirah Mohd Johari, Arwin Idham Mohamad, and Mohd Hanafi Tumin ASA. 2018. “The Estimation of Total Expected Medical Cost for Heart Disease Based on Four Major Illnesses: Angina, Heart Failure, Ischemic and Myocardial Infarction”. International Journal of Engineering & Technology 7 (4.33): 127-29. https://doi.org/10.14419/ijet.v7i4.33.23515.