M.D., B., B.(2004).The Practice of Ultrasound A Step-by-Step Guide to Abdominal Scanning .Stuttgart · New York:Georg Thieme Verlag KG.
Gaya MLA
M.D., Berthold, Block,."The Practice of Ultrasound A Step-by-Step Guide to Abdominal Scanning".Stuttgart · New York:Georg Thieme Verlag KG,2004.Buku Pelajaran.