Sadhana, Wisnu, dan Yulistiarini Yulistiarini. 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):114-19. https://wpcpublisher.com/jurnal/index.php/HRJI/article/view/618.