↑Kim, 1993. Journal of Natural History and Environments 1(1). World Society of Natural History and Environments:Pusan University, Pusan, Korea. ISSN 1225-6404.
↑Lambert, D. 1993. "A to Z of Dinosaurs" In: The Ultimate Dinosaur Book. Dorling Kindersley, 192 pp. ISBN 0-7513-0047-0