Silva, H.D., Wibawa, I.D.N., Pinatih, I. and Mulyanto, .-. 2017. The influence of the use of used syringe needles, permanent tattoos, and sharing razors toward hepatitis B virus infection in Dili City, Timor-Leste. International research journal of engineering, IT & scientific research. 3, 2 (Mar. 2017), 165–170.