1. " Manual of Anatomy ", 2nd impression;BUCHANAN, A.M.,1914
2. Buchanan's Manual of Anatomy;Bailliere, Tindall; Cox, London,1949
3. Text-book of Anatomy;Bailliere, Tindall; Cox, London CumNGHAm; J, D.;Ibid; Cunningham's Text-book of Anatomy,1902
4. Press, London. (1951). Ibid., 9thed.,ed.J.C.Brash,pp.1013, 1014, 1160, 1162, 1169. OxfordUniversity London.
5. FISON, J. (1920). J. Anat. (Lond), 54, 184.