Irawan, Muhammad Henrie, Yuly Persitiowati, and Agustin Agustin. 2024. “Pursed Lip Breathing Exercises and Diaphragmatic Breathing Exercises in Increasing Forced Vital Capacity and First Second Expiratory Volume (VEF1) in Post Covid-19 Patients”. Indonesian Journal of Global Health Research 6 (6), 3921-38. https://doi.org/10.37287/ijghr.v6i6.4007.