Application of Pursed Lip Breathing Therapy to Improve Oxygenation Status in Children with Pneumonia. INCH : Journal of Infant and Child Healthcare [Internet]. 1 Juli 2025 [dikutip 12 Januari 2026];4(01):1-6. Tersedia pada: https://jurnal.pkr.ac.id/index.php/INCH/article/view/1000