Farag, E. M. R., H. A. Elfeky, and S. M. E. Allam. “Effect of Progressive Muscle Relaxation Technique on Self-Esteem and Self- Efficacy Among Coronary Artery Diseases Patients”. International Journal of Health Sciences, vol. 6, no. S9, May 2022, pp. 4910-26, doi:10.53730/ijhs.v6nS9.14255.