1. Allott, A.N. 1968 ‘African Law.’ Pp. 131–156 in J.D.M. Derrett (ed.),An Introduction to Legal Systems. London: Sweet & Maxwell.
2. Ayittey, George B.N. 1991Indigenous African Institutions.Ardsley-on-Hudson, N.Y.: Transnational.
3. Bohannan, Paul 1957Justice and Judgement Among the Tiv.London: Oxford University Press for the International African Institute.
4. Chiba, Masaji 1989Legal Pluralism: Toward a General Theory through Japanese Legal Culture. Tokyo: Tokai University Press.
5. Chiba, Masaji 2002Legal Cultures in Human Society: A Collection of Articles and Essays. Tokyo: Shinzansha International.