Oesman, Ismet N., Hartono Gunardi, Bambang Madiyono, Sudigdo Sastroasmoro, and Sukman T. Putra. 1996. “Profile and Prediction of Severity of Rheumatic Mitral Stenosis in Children”. Medical Journal of Indonesia 5 (3):152-7. https://doi.org/10.13181/mji.v5i3.864.