Fatema, Monzur E, Noorzahan Begum, and Sultana Ferdousi. “Effect of Deep Relaxation on Heart Rate Variability in Sedentary Females”. Journal of Bangladesh Society of Physiologist 9, no. 1 (March 29, 2015): 6–10. Accessed August 16, 2024. https://banglajol.info/index.php/JBSP/article/view/22787.