Musviro, Arini Fitria, Nurul Hayati, Laili Nur Azizah, and Anggia Astuti. “Pursed Lips Breathing With Balloon Enhancing Airway Clearance in Children With Pneumonia”. Health and Technology Journal (HTechJ), vol. 3, no. 3, June 2025, pp. 342-50, doi:10.53713/htechj.v3i3.357.