1. Achilli, A., Olivieri, A., Pellecchia, M., Uboldi, C., Colli, L., & Al-Zahery, N. (2008). Mitochondrial genomes of extinct aurochs survive in domestic cattle. Current Biology, 18, R157–R158.
2. Banks, K.M. (1984). Climates, cultures and cattle. The Holocene archaeology of the eastern Sahara. Department of Anthropology, Institute for the Study of Earth and Man, Southern Methodist University, Dallas
3. Barakat, H. (2001). Anthracological studies in the Neolithic sites of Nabta Playa, South Egypt. In F. Wendorf & R. Schild and Associates (Eds.), Holocene settlement of the Egyptian Sahara, vol. 1. The archaeology of Nabta Playa (pp. 592–600). New York: Kluwer Academic/Plenum Publishers.
4. Bechaus-Gerst, M. (2000). Linguistic evidence for the prehistory of livestock in Sudan. In R. M. Blench & K. C. MacDonald (Eds.), The origins and development of African livestock: Archaeology, genetics, linguistics and ethnography (pp. 449–461). London: UCL Press.
5. Beja-Pereira, A., Caramelli, D., Lalueza-Fox, C., Vernesi, C., Ferrand, N., Casoli, A., et al. (2006). The origin of European cattle: Evidence from modern and ancient DNA. Proceedings of the National Academy of Sciances of the United States of America, 103(21), 8113–8118.