UJI EFEKTIFITAS TEKNIK PERNAFASAN PURSED LIP BREATHING DENGAN DEEP BREATHING TERHADAP SKOR CAT DAN NILAI SATURASI OKSIGEN PASIEN PPOK. nutricia [Internet]. 2026 Sep. 25 [cited 2026 Oct. 18];24(1). Available from: https://journal.cib.institute/index.php/nutricia/article/view/4493