1. Aristotle. 2009. The Nicomachean ethics. Trans. W.D. Ross. Oxford: Oxford University Press
2. Bai-sharka, Abou. 1986. Temne names and proverebs. Free Town: People’s Educational Association of Siera Leone.
3. Bénézet, Bujo. 1990. African Christian morality at the age of inculturation. Nairobi, Kenya: St. Paul Publications-Africa.
4. Biko, Steve. 2004. Some African cultural concepts. Johannesburg: Picador Africa.
5. Campbell, Dugald. 1922. In the heart of Bantuland: A record of twenty-nine years in Central Africa among the Bantu peoples. London: Seely Service and Co.