PUGUH SANTOSO; SUCIPTO, S. Efectiveness Of Effective Cough In Expelling Sputum In Chronic Bronchitis Cases. Jurnal EduHealth, [S. l.], v. 15, n. 04, p. 763–767, 2024. Disponível em: https://ejournal.seaninstitute.or.id/index.php/healt/article/view/5786. Acesso em: 22 dec. 2024.