1. “Animal Mechanics”;Alexander,1968
2. The musculature of the primate shoulder;Ashton;Trans. Zool. Soc. London,1963
3. The functional and combined classificatory significance of combined metrical features of the primate shoulder girdle;Ashton;J. Zool.,1971
4. “Muscles Alive”;Basmajian,1967
5. Sterkfontein apeman Plesianthropus;Broom;Mem. Transv. Mus.,1950