Kusumawati, R. D. and Yuniartika, W. (2020) “Penggunaan Pursed Lip Breathing pada Penyakit Paru Obstruktif Kronik (PPOK)”, Prosiding University Research Colloquium, pp. 73–83. Available at: https://repository.urecol.org/index.php/proceeding/article/view/1125 (Accessed: 17 May 2024).