1.
Sukartini T, Widyawati IY, Sari YI. Progressive Muscle Relaxation Increase Peak Expiratory Flow Rate On Chronic Obstructive Pulmonary Disease Patients. J. Ners [Internet]. 2017 Jul. 23 [cited 2024 Apr. 15];3(1):8-13. Available from: https://e-journal.unair.ac.id/JNERS/article/view/4973