עצם – הבדלי גרסאות

* Keith L. Moore, Arthur F. Dalley, Anne M. R. Agur, '''Clinically Oriented Anatomy, 6th Edition''', Lippincott Williams & Wilkins, 2010, pp. 19-25, {{ISBN |978-1-60547-652-0}}.

* Anthony L. Mescher, '''Junqueira's Basic Histology, 12th Edition''', McGraw-Hill, pp. 121-139, {{ISBN |978-0-07-160431-4}}