Amelia, Weny, Dian Febrida Sari, Armein Syahid, & . Espasari. " EFFECTIVENESS OF WEB-BASED PROGRESSIVE MUSCLE RELAXATION (PMR) ON SLEEP QUALITY IN PATIENTS BREAST CANCER UNDERGOING CHEMOTHERAPY." E-Jurnal Medika Udayana [Online], 13.10 (2024): 30-36. Web. 8 Feb. 2025