Sastroasmoro, S., B. Madiyono, and I. Oesman. “Sensitivity and Specificity of Electrocardiographic Criteria for Left Ventricular Hypertrophy in Children With Rheumatic Heart Disease”. Paediatrica Indonesiana, Vol. 31, no. 9-10, Jan. 2019, pp. 233-44, doi:10.14238/pi31.9-10.1991.233-44.