Influence Technique Buteyko to Improvement SpO2 on Asthma Patient. OVUM : Journal of Midwifery and Health Sciences, [S. l.], v. 6, n. 2, p. 134–139, 2026. DOI: 10.47701/bq867p24. Disponível em: https://www.ojs.udb.ac.id/ovum/article/view/6099. Acesso em: 24 oct. 2026.