Handoyo, Putri, Wahyudi Mulyaningrat, & Annas Sumeru. " THE EFFECT OF PROGRESSIVE MUSCLE RELAXATION AND WARM COMPRESSES ON CHANGES IN LOW BACK PAIN LEVELS IN THE ELDERLY: CASE STUDY." International Journal of Biomedical Nursing Review [Online], 5.2 (2026): 46-50. Web. 13 Jun. 2026