Birge, Edward A.
Springer-Verlag , 1988
Buku Teks
Snustad, D. Peter, 1940-
Jonh Wiley & Sons, 2012
Buku Teks
Weaver, Robert F.
W.C. Brown, 1989
Buku Referensi
edited by C.E. Hormaeche, C.W. Penn, C.J. Smyth
Cambridge University Press, 1992
Buku Teks
Meier, Remy
The Indonesian Journal of Gastroenterology Hepatology and Digestive Endoscopy, 2003
Artikel Jurnal