Singh, H., S. Jain, R. Singh, M. S. Gupta, and Kamal Kishore. “Evaluating Mental Stress Test in Coronary Artery Disease Treadmill Positive Patients”. Medical Journal of Indonesia 11, no. 1 (February 1, 2002): 36-40. Accessed January 24, 2022. http://mji.ui.ac.id/journal/index.php/mji/article/view/46.