1. Alvard, M. S., Alcorn, J. B., Bodmer, R. E., Hames, R., Hill, K., Hudson, J., et al. (1995). Intraspecific prey choice by Amazonian hunters. Current Anthropology,36(5), 789–818.
2. Alvard, M. S., & Kunzar, L. (2001). Deferred harvests: The transition from hunting to animal husbandry. American Anthropologist,103(2), 295–311.
3. Anonymous. (2008). Facts about cooperation: Madagascar and the IRRI. International Rice Research Institute.
http://www.irri.org/media/facts/pdfs/madagascar.pdf
. Accessed 12 July 2008.
4. Bennardo, G., & de Munk, V. (2014). Cultural models: Genesis, methods, and experiences. New York: Oxford University Press.
5. Bernard, H. R. (2011). Research methods in anthropology: Qualitative and quantitative approaches. New York: Altimira.