1. Acharya, A. (2012). Comparative regionalism: A field whose time has come? The International Spectator, 47(1), 3–15.
2. Adebajo, A. (2014). Nigeria and South Africa: On the concept “every African is his brother’s keeper.” In M. Serrano & T. G. Weiss (Eds.), The international politics of human rights (pp. 197–217). Routledge.
3. Adeola, R. (2015). Preventing Xenophobia in Africa: What must the African Union do? African Human Mobility Review, 1(3).
4. African Union. (2018). Agreement establishing the African Continental Free Trade Area. African Union.
5. Agyeno, O. (2019). Xenophobic violence and the African philosophy of Ubuntu in South Africa. African Journal of Democracy and Governance, 6(1), 24–44.