1. Aquinas, St. Thomas. 1964. Summa Theologiae, 60 Volumes. Trans. Dominican Fathers. London: Blackfriars.
2. Bujo, B. 2009. Is There a Specific African Ethics? In African Ethics. An Anthology of Comparative and Applied Ethics, ed. M.F. Murove, 113–128. Scottsville: University of Kwazulu-Natal Press.
3. Coetzee, J.M. 1999. The Lives of Animals. Princeton: Princeton University Press.
4. Coetzee, J.M. 2003. Elizabeth Costello. London: Secker and Warburg.
5. Giddy, P. 2002. African Traditional Thought and Growth in Personal Unity. International Philosophical Quarterly 42: 315–327.