Ahiamadu, A. “Re-Defining Stewardship in the Niger Delta: A Graft or ‘giraffe’ Principle?”. NGTT | Nederduitse Gereformeerde Teologiese Tydskrif 51, no. 1&2 (June 30, 2010). Accessed October 18, 2025. https://ojs.reformedjournals.co.za/index.php/ngtt/article/view/923.