[1] "renal system." Encyclopædia Britannica. 2008. Encyclopædia Britannica Online. Feb. 29, 2008 <http://www.britannica.com/eb/article-9110632>.
[2] Gartner, L.P. and J. L. Hiatt. Color Textbook of Histology, 2nd Edition. New York: W.B. Saunders Company. 2001.
[3] Junqueira, L.C. and J. Carneiro. Basic Histology - text and atlas, 11th Edition. New York: McGraw-Hill Medical Publishing Division. 2005.
[4] "Histology Renal Homepage. University of Ottawa. 2008. Feb. 29, 2008. <http://courseweb.edteched.uottawa.ca/medicine-histology/English/Renal/Default.htm>
[5] O'Callaghan, C. The Renal System at a Glance, 2nd Edition. Massachusetts: Blackwell Publishing Ltd. 2006.
[6] Vaughan, D.W. A Learning System in Histology. New York: Oxford University Press. 2002.
[7] Gupta, M., Pandey, A.K. and N. Goyal. "Horseshoe Kidney - A case report." Nepal Medical College Journal 9. 1 (2007): 63-66.
[8] Nahm, A-M. and E. Ritz. "Horseshoe Kidney." Nephrology Dialysis Transplantation 14 (1999): 2740-2741.
[9] "Horseshoe kidney." Wikipedia, The Free Encyclopedia. Jan. 29, 2008. Wikimedia Foundation, Inc. Mar. 1, 2008 <http://en.wikipedia.org/w/index.php?title=Horseshoe_kidney&oldid=187607798>.
[10] Wiener, J.S. and M.E. Maloney. Multicystic Dysplastic Kidney. Feb. 19, 2008. eMedicine. Feb. 29, 2008 <http://www.emedicine.com/radio/topic458.htm>
