Hutasoit, C., Dj., M. K., Daulay, R. M., Lubis, H. M., & Siregar, Z. (2019). Bronchopneumonia with measles in Infants and Children at the Department of Child Health School of Medicine, University of North Sumatera/ Dr. Pirngadi Hospital Medan (January 1985 - December 1989). Paediatrica Indonesiana, 31(9-10), 273–80. https://doi.org/10.14238/pi31.9-10.1991.273-80