Sarmila, B., Iskandar, B. and Daud, D. (2019) “Diagnostic value of electrocardiography for ventricular septal defect”, Paediatrica Indonesiana, 59(2). Available at: https://paediatricaindonesiana.org/index.php/paediatrica-indonesiana/article/view/2036 (Accessed: 21July2019).