Setijaningsih, T., Fazira, G. I., & Sepdianto, T. C. (2019). CHANGES IN BREATHING SOUND AND BREATHING FREQUENCY OF CLIENTS WHO HAVE CHRONIC OBSTRUCTION PULMONARY DISEASE (COPD) WITH CHEST PHYSIOTHERAPY IN MARDI WALUYO HOSPITAL, BLITAR: PERUBAHAN SUARA NAPAS DAN FREKUENSI PERNAPASAN PADA KLIEN YANG MENDERITA PENYAKIT PARU OBSTRUKSI KRONIK (PPOK) DENGAN FISIOTERAPI DADA DI RSUD MARDI WALUYO KOTA BLITAR. Bali Medika Jurnal, 6(2), 147–154. https://doi.org/10.36376/bmj.v6i2.77