1. Bremmer, J. N. The Strange World of Human Sacrifice (Peeters, 2007)
2. Carrasco, D. City of Sacrifice (Beacon Press, 1999)
3. Beatty, A. Society and Exchange in Nias (Claredon Press, 1992)
4. Burt, B. Tradition and Christianity: the Colonial Transformation of a Solomon Islands Society (Harwood Academic Publishers, 1994)
5. Del Castillo, B. D. The History of the Conquest of New Spain . (Univ. New Mexico Press, 2008)