Sukmawan, Renan. “Menilai Doppler Jaringan Pada Gagal Jantung: Perlukah ?”. Indonesian Journal of Cardiology 31, no. 3 (June 17, 2013): 175–6. Accessed October 31, 2026. http://www.ijconline.id/index.php/ijc/article/view/130.