1. Abbate, E., Albianelli, A., Awad, A., Billi, P., Bruni, P., Delfino, M., et al. (2010). Pleistocene environments and human presence in the middle Atbara valley (Khashm El Girba, Eastern Sudan). Palaeogeography, Palaeoclimatology, Palaeoecology, 292(1), 12–34.
2. Adams, J. W., Rovinsky, D. S., Herries, A. I., & Menter, C. G. (2016). Macromammalian faunas, biochronology and palaeoecology of the early Pleistocene Main Quarry hominin-bearing deposits of the Drimolen Palaeocave System, South Africa. PeerJ, 4, e1941.
3. Albrecht, M., Berke, H., Eichhorn, B., Frank, T., Kuper, R., Prill, S., et al. (2001). Oruwanje 95/1: A late Holocene stratigraphy in northwestern Namibia. Cimbebasia, 17, 1–22.
4. Alemseged, Z., & Geraads, D. (2000). A new Middle Pleistocene fauna from the Busidima-Telalak region of the Afar, Ethiopia. Comptes Rendus de l’Académie des Sciences, 331, 549–556.
5. British Archaeological Reports;P Allsworth-Jones,2010