Ginting, Samuel, Sri Nurwahyuni, and Syatriawati Syatriawati. “PENGARUH POSISI ORTOPNEA TERHADAP NILAI SATURASI OKSIGEN PADA PASIEN PENYAKIT PARU OBSTRUKTIF KRONIK (PPOK)”. Jurnal Keperawatan 18, no. 2 (July 31, 2025): 119-129. Accessed August 6, 2025. https://e-journal.lppmdianhusada.ac.id/index.php/jk/article/view/481.