Karyadiguna, Nugroho, Soetjiningsih Soetjiningsih, W. Retayasa, and M. Kardana. 2007. “Efficacy of Lidocaine-Prilocaine Combination Cream in Reducing Pain Caused by Hepatitis B Injection in Neonates: A Randomized Control Trial”. Paediatrica Indonesiana 47 (1), 12-6. https://doi.org/10.14238/pi47.1.2007.12-6.