Jabarkan Galeri dari Ogre

Rose, Carol. Giants, Monsters, & Dragons: An Encyclopedia of Folklore, Legend, and Myth. New York: W. W. Norton & Company, 2001. ISBN 0-393-32211-4

Shippey, Tom. The Road to Middle-earth. London: HarperCollins, 1992 (rev.). ISBN 0-261-10275-3

South, Malcolm, ed. Mythical and Fabulous Creatures: A Source Book and Research Guide. Westport, CT: Greenwood Press, 1987. Reprint, New York: Peter Bedrick Books, 1988. ISBN 0-87226-208-1

"Ogre." Encyclopædia Britannica. 2006. Encyclopædia Britannica Online. 15 May 2006, search.eb.com