PENGARUH PURSED LIPS BREATHING TERHADAP POLA NAFAS PASIEN PPOK DI RUMAH MITRA MEDIKA TANJUNG MULIA. keperawatan [Internet]. 2023 Dec. 31 [cited 2024 May 14];12(2):190-4. Available from: https://jurnal.ikta.ac.id/keperawatan/article/view/2503