YUNIADI, Yoga. Gelombang P yang Berubah-ubah: Apa mekanismenya?. Indonesian Journal of Cardiology, [S. l.], v. 29, n. 3, p. 132–134, 2013. DOI: 10.30701/ijc.v29i3.186. Disponível em: https://www.ijconline.id/index.php/ijc/article/view/186. Acesso em: 6 oct. 2026.