HIDAYATULLOH, N. ACUTE EXACERBATIONS ON CHRONIC OSTRUCTIVE PULMONARY DISEASE (COPD) WITH SECONDARY INFECTION. Jurnal Agromedicine Unila: Jurnal Kesehatan dan Agromedicine, [S. l.], v. 2, n. 1, p. 57–62, 2015. Disponível em: https://juke.kedokteran.unila.ac.id.103-3-46-85.cpanel.site/index.php/agro/article/view/1277. Acesso em: 4 feb. 2026.