Widjanantie, Siti Chandra, and Ferius Soewito. “Case Report: Non Invasif Ventilator As an Alternative in Improving Diaphragma Movement, Peak Flow Expiration and End Tidal Carboncioxide of Laringectomees”. Journal Of The Indonesian Medical Association 71, no. 3 (July 23, 2021): 146-150. Accessed May 3, 2024. https://mki-ojs.idionline.org/jurnal/article/view/614.