Sejian, V and Lakritz, J (2011, August), "Assessment Methods and Indicators of Animal Welfare." Asian Journal of Animal and Veterinary Advances, vol 6, no. 4, pp. 301-315.
Spallone, C (2014, April 18). "Rescue groups helping former lab animals." One Green Planet. [online] available: http://www.onegreenplanet.org/animalsandnature/5-awesome-rescue-groups-helping-former-lab-animals/.
Wise, SM (2000). Rattling the Cage: Toward Legal Rights for Animals. Cambridge, MA: Perseus Books.
Yarri, D (2005). The Ethics of Animal Experimentation: A Critical Analysis and Constructive Christian Proposal. New York: Oxford University Press.