Ukwueze, Ezebuilo Romanus, and Ekene Stephen Aguegboh. “Institutional Determinants of Economic Growth in ECOWAS Sub-Region”. International Journal of Economics and Financial Issues, vol. 8, no. 5, Sept. 2018, pp. 75-79, https://econjournals.com.tr/index.php/ijefi/article/view/6975.