F. Lainsamputty, F. X. Widiantoro, S. Sumarmi, K. M. Pandelaki, and J. R. Maramis, “Malnutrition and its Association with Heart Failure Severity in Children with Congenital Heart Disease: A Cross- Sectional Study in Indonesia”, IHJ, vol. 6, no. 01, pp. 174–188, Mar. 2026.