Supriwandani, Heru, Mardiyono Mardiyono, and Warijan Warijan. “SLOW DEEP PURSED-LIPS BREATHING EXERCISE ON VITAL LUNG CAPACITY IN POST-EXTUBATION PATIENTS IN THE INTENSIVE CARE UNIT”. Belitung Nursing Journal 4, no. 1 (February 27, 2018): 58–67. Accessed April 28, 2024. https://www.belitungraya.org/BRP/index.php/bnj/article/view/127.