“Perbandingan Antara Balloon Blowing Exercise Dengan Diaphragmatic Breathing Exercise Terhadap Peningkatan Saturasi Oksigen Pada Pasien PPOK”. Solo Nursing Journal, vol. 2, no. 2, Dec. 2025, pp. 25-40, https://solonursingjournal.org/index.php/data/article/view/28.