Lutfi Alfadel Razak, Ita Sulistiani and Ibrahim Suleman (2026) “The Effect of the Combination of Semi Fowler Position and Pursed Lip Breathing Technique on Increasing Oxygen Saturation in COPD Patients in the ER Room at Dr. M.M. Dunda Limboto Hospital ”, International Journal of Health, Economics, and Social Sciences (IJHESS), 8(2). doi: 10.56338/ijhess.v8i2.10512.