1. Aihiokhai, S. A. (2012). Shaping the Content for Interreligious Engagement: A Case for Interreligious Hospitality in Nigeria’s Religiously Pluralistic Societies. Available online: https://api.semanticscholar.org/CorpusID:157665484.
2. Option for the Poor and for the Earth: Catholic Social Teachings. Donal Dorr;Ajibola;Religious Studies Review,2015
3. Ajogi, Charles (2019). Inter-Religious Relations among the Igala People of Nigeria. [Master’s thesis, Radboud University].
4. Akpanika, Ekpenyong Nyong (2017). Religious and Political Crises in Nigeria: A Historical Exploration, PhilPapers.
5. Ali, Abdullah Yusuf (1946). The Holy Qur’an, Islamic Propagation Centre International.