Kloning dan ekspresi gen S penyandi hepatitis b surface antigen (hbsag) virus hepatitis b â isolate wiatarawi, lowibok=Cloning and Statement of the S Gene Encoding the Hepatitis B Surface Antigen (HBsAg) of Hepatitis B - Perpustakaan UGM, i-lib ([Yogyakarta] : Universitas Gadjah Mada, 2001)