NOVIE, N. E. M.; DESINTRA, D. E. D. Environmental Factors As The Risk Factors Of The Degrees Severity Chronic Obstructive Pulmonary Diseases on Elderly. JURNAL KESEHATAN KARTIKA, [S. l.], v. 14, n. 2, p. 109–115, 2021. DOI: 10.26874/jkkes.v14i2.97. Disponível em: http://ejournal.stikesjayc.id/index.php/litkartika/article/view/97. Acesso em: 31 jan. 2025.