Gusmarta G, Oktarina Y. Case Report : Implementation of Pursed-Lips Breathing Technique on Respiratory Rate and Oxygen Saturation in Chronic Obstructive Pulmonary Disease (COPD) Patients in the Pulmonary Ward of Raden Mattaher Hospital Jambi. Jur. Kep. Unv. Jambi [Internet]. 2025 Aug. 30 [cited 2026 May 7];9(3):8-12. Available from: https://www.online-journal.unja.ac.id/JNJ/article/view/47490