Milyana, N., G. Tjipta, M. Ali, E. Azlin, B. Lubis, P. Sianturi, and B. Hasibuan. “Effectiveness of Single and Double Phototherapy on Indirect Hyperbilirubinemia in Neonates”. Paediatrica Indonesiana, Vol. 51, no. 6, Dec. 2011, pp. 316-21, doi:10.14238/pi51.6.2011.316-21.