Warner, Tyler; Tubbs, R. Shane (2021-01-01), Tubbs, R. Shane; Iwanaga, Joe; Loukas, Marios; Dumont, Aaron S. (eds.), "Chapter 7 - The Nerve to Obturator Internus", Surgical Anatomy of the Sacral Plexus and Its Branches, Elsevier, pp. 31–34, ISBN978-0-323-77602-8, retrieved 2021-02-06