1. Andrushko, V. (2007). The bioarchaeology of Inca imperialism in the heartland. Unpublished Ph.D. Dissertation, University of California, Santa Barbara.
2. Andrushko, V. A., & Verano, J. W. (2008). Prehistoric trepanation in the Cuzco region of Peru: A view into an ancient Andean practice. American Journal of Physical Anthropology, 137(1), 4–13.
3. Arkush, E. N., & Tung, T. A. (2013). Patterns of war in the Andes from the Archaic to the late horizon: Insights from settlement patterns and cranial trauma. Journal of Archaeological Research, 21, 307–369.
4. Baker, P. H., & Ausink, J. A. (1996). State collapse and ethnic violence: Toward a predictive model. Parameters, 26, 19–31.
5. Bastien, J. W. (1985). Mountain of the condor: Metaphor and ritual in an Andean ayllu. Long Grove: Waveland Press.