F. Hoffman-La Roche & Co., [date of publication not identified]
Buku Teks
Meier, Remy, author
The Indonesian Journal of Gastroenterology Hepatology and Digestive Endoscopy, 2003
Artikel Jurnal
Bambang Wispriyono, author
Lembaga Penelitian Universitas Indonesia, 1994
UI - Laporan Penelitian
Birge, Edward A.
Springer, 2006
Buku Teks
Artikel Jurnal