Girson, Ralph
2005
Artikel Jurnal
by Indra Marki ... [and others]
The Indonesian Journal of Gastroenterology Hepatology and Digestive Endoscopy, 2001
Artikel Jurnal
Samosir, David R. S.
The Indonesia Journal of Gastroenterology Hepatology and Digestive Endoscopy, 2002
Artikel Jurnal
Hwang, Soon-Won
Jimoondang Publishing Company, 2003
Buku Teks
Wolfe,Tom
Farrar straus giroux, 1998
Buku Teks