Putri, Sima Asmara Dewa Marya Mahardika, Agus Kristiyanto, and Hanung Prasetya. 2021. “Meta-Analysis the Effectiveness of McKenzie Exercise to Reduce Pain in Patients With Non-Specific Low Back Pain”. Journal of Epidemiology and Public Health 6 (1):33-41. https://www.jepublichealth.com/index.php/jepublichealth/article/view/363.