Fadhila, Nabella Ayu, Hotma Rumahorbo, & Sudirman Sudirman. " The Effectiveness of Combination of Back Massage and Deep Breathing Exercises on Changes in Hemodynamic Status (SpO2) Patients of Congestive Heart Failure." NurseLine Journal [Online], 8.1 (2023): 60-68. Web. 22 Dec. 2024