FIRDAUS, F. A.; SUSILAWATI, S. Biofeedback to Improve Heart Rate Variability in Patient with Coronary Artery Disease. INDOGENIUS, [S. l.], v. 5, n. 2, p. 580–585, 2026. DOI: 10.56359/igj.v5i2.1027. Disponível em: https://genius.inspira.or.id/index.php/indogenius/article/view/1027. Acesso em: 4 jun. 2026.