Affandi, Maemunah B., L.A. Tamaela, and R. Widodo Talogo. 2017. “Prevalence of Heart Disease of Elementary Schoolchildren in a Well-To-Do Population Group, Jakarta 1973”. Paediatrica Indonesiana 19 (1-2):41-6. https://doi.org/10.14238/pi19.1-2.1979.41-6.