Nury Nusdwinuringtyas, Roy Dwi Indra, Tresia Fransiska Ulianna Tambunan, Aria Kekalih. Value of Peak Cough Flow (PCF) in Healthy Middle Adulthood and Late Adulthood and the Affecting Factors. IndoJPMR [Internet]. 2020Dec.30 [cited 2026Jan.12];9(01):1 - 11. Available from: https://indojournalpmr.org/IndoJPMR/article/view/251