Firdausi NL, Artanti KD, Li C-Y. Analysis of Risk Factors Affecting The Occurrence of Chronic Obstructive Pulmonary Disease in Indonesia. JBE [Internet]. 2021 Jan. 29 [cited 2024 Dec. 24];9(1):18-25. Available from: https://e-journal.unair.ac.id/JBE/article/view/16711