I. Firdaus, C. T. Tjahjono, G. H. Harimurti, and P. S. Roebiono, “Coronary to pulmonary fistula as the primary source of pulmonary blood supply in pulmonary atresia with ventricular septal defect”, Med J Indones, vol. 13, no. 4, pp. 237-40, Nov. 2004.