1.
Lybralia Permana M, Waluyo A, Faradita Aryani D. Effectiveness of the Active Cycle of Breathing Technique on Sputum Clearance and Airway Clearance in Patients with COPD: A Systematic Review. IJGHR [Internet]. 2025 Oct. 25 [cited 2026 May 26];8(1):221-30. Available from: http://jurnal2.globalhealthsciencegroup.com/index.php/IJGHR/article/view/594