1. 1928. Das arteriensystem der Japaner. Bd.1. Kyoto: Maruzen. p 196-341.
2. 1966. Developmental anatomy: a textbook and laboratory manual of embryology. 7th Ed. Philadelphia: W.B. Saunders. p 429-435, 500-516.
3. 1988. Compendium of human anatomic variation. Baltimore: Urban & Schwarzenberg. p 139-143.