Ishak, Azril, Sarah Nadirah Mohd Johari, Arwin Idham Mohamad, and Mohd Hanafi Tumin ASA. “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 and Technology 7, no. 4.33 (December 9, 2018): 127–129. Accessed February 23, 2026. https://www.sciencepubco.com/index.php/IJET/article/view/23515.