Gaurinindi, Melinda Febianca, Eti Poncorini Pamungkasari, and Bhisma Murti. 2021. “Meta-Analysis the Effects of Stretching and Whole Body Vibration Exercise in Reducing Low Back Pain Among Heavy Equipment Operator Workers”. Journal of Epidemiology and Public Health 6 (4):426-37. https://jepublichealth.com/index.php/jepublichealth/article/view/440.