1. The role of field study in humanistic and interdisciplinary environmental education;Alagona;J Exp Educ,2010
2. Differences in daily life between semiprovisioned and wild-feeding baboons;Altmann;Am J Primatol,1988
3. American Association of Physical Anthropologists (AAPA) 2003 http://physanth.org/association/position-statements/code-of-ethics
4. American Psychological Association (APA) 2012 http://www.apa.org/science/leadership/care/guidelines.aspx
5. American Society of Primatologists (ASP). 2001 Principles for the ethical treatment of non-human primates https://www.asp.org/society/resolutions/EthicalTreatmentOfNonhumanPrimates.cfm