Wahyuni, Lutfi, and Catur Prasastia Lukita Dewi. “Tripod Position and Pursed Lip Breathing on Respiration Rate in COPD Patients”. Jurnal Ners dan Kebidanan (Journal of Ners and Midwifery) 10, no. 1 (September 5, 2023): 100–107. Accessed October 5, 2024. http://ojs.phb.ac.id/index.php/jnk/article/view/900.