^Conroy, Glen C.; Weber, Gerhard W.; Seidler, Horst; Tobias, Phillip V.; Kane, Alex; Brunsden, Barry (1998). "Endocranial Capacity in an Early Hominid Cranium from Sterkfontein, South Africa". Science. 280 (5370): 1730–1731. Bibcode:1998Sci...280.1730C. doi:10.1126/science.280.5370.1730. PMID9624045.
Further reading
Benazzi, Stefano; Gruppioni, Giorgio; Strait, David S.; Hublin, Jean-Jacques (January 2014). "Technical Note: Virtual reconstruction of KNM-ER 1813 Homo habilis cranium". American Journal of Physical Anthropology. 153 (1): 154–160. doi:10.1002/ajpa.22376. PMID24318950.
Day, M. H.; Leakey, R. E. F.; Walker, A. C.; Wood, B. A. (1976). "New hominids from East Turkana, Kenya". American Journal of Physical Anthropology. 45 (3): 369–435. doi:10.1002/ajpa.1330450304. PMID826171.
Lieberman, Daniel E.; Pilbeam, David R.; Wood, Bernard A. (1988). "A probabilistic approach to the problem of sexual dimorphism in Homo habilis: a comparison of KNM-ER 1470 and KNM-ER 1813". Journal of Human Evolution. 17 (5): 503–511. doi:10.1016/0047-2484(88)90039-5.