Dadan Prayogo, Bernadus Sadu, Utomo Wicaksono, and Fitri Gunawati. “ADDITION OF DEEP CROSS-FRICTION MASSAGE IS BETTER THAN SLOW STROKE BACK MASSAGE AFTER MCKENZIE EXERCISE TO IMPROVE FUNCTIONAL ABILITY AND WORK PRODUCTIVITY OF STONE BREAKERS WITH NON-SPECIFIC LOW BACK PAIN”. International Journal of Social Science 2, no. 2 (August 3, 2022): 1483–1490. Accessed July 4, 2025. https://bajangjournal.com/index.php/IJSS/article/view/3080.