1. Albers, P. (2007), “How to measure the rule of law: a comparison of three studies”, Paper presented at Rule of Law Conference, Hague Institute for Internationalization and Law, The Hague.
2. AU-AfDB-UNECA (2016), Africa Regional Integration Index Report 2016, African Union, African Development Bank Group, Economic Commission for Africa, Addis Ababa – Abidjan.
3. Revisiting a paradigm,1999