THE EFFECT OF PURSED LIP BREATHING (PLB) EXERCISE ON RESPIRATORY STATUS IN PATIENTS WITH CHRONIC OBSTRUCTIVE PULMONARY DISEASE (COPD). Jurnal Perawat Indonesia, [S. l.], v. 7, n. 1, p. 1259–1265, 2023. DOI: 10.32584/jpi.v7i1.2180. Disponível em: https://journal.ppnijateng.org/jpi/article/view/2180. Acesso em: 24 jan. 2026.