„Apical Phalangeal Tufts”. Center for Academic Research & Training in Anthropogeny. Приступљено 15. 1. 2010.
archive.org
Drake, Richard L.; Vogl, Wayne; Tibbitts, Adam W. M. (2005). Gray's Anatomy for Students. Illustrations by Richard Mitchell and Paul Richardson. Philadelphia: Elsevier/Churchill Livingstone. ISBN978-0-8089-2306-0.