Dworkin, Martin
Benjamin/Cummings, 1985
Buku Teks
edited by Brian R. Pamplin
Pergamon Press , 1981
Buku Teks
Meier, Remy
The Indonesian Journal of Gastroenterology Hepatology and Digestive Endoscopy, 2003
Artikel Jurnal
Mahdi Jufri
2011
UI - Makalah dan Kertas Kerja
Birge, Edward A.
Springer, 2006
Buku Teks