Sadhana, W. ., & Yulistiarini, Y. (2025). Efek Latihan Diapraghmatic Breathing Exercise Terhadap Saturasi Oksigen Pasien PPOK di RSUD Jenderal Ahmad Yani Metro Tahun 2024. Health Research Journal of Indonesia, 3(3), 114–119. https://doi.org/10.63004/hrji.v3i3.618