Wedhana, Hilmy Indra, Arief Bakhtiar, Edward Kusuma, and Alfian Nur Rosyid. “Risk Factors of Death in Chronic Obstructive Pulmonary Disease (COPD) Patients at Dr. Soetomo General Academic Hospital, Surabaya, in 2019”. JUXTA: Jurnal Ilmiah Mahasiswa Kedokteran Universitas Airlangga 16, no. 1 (January 10, 2025): 14–20. Accessed April 19, 2025. https://e-journal.unair.ac.id/JUXTA/article/view/42038.