Ahmed, A. D. (2001). Sources of economic growth in Sub-Saharan African countries. Kulliyyah of Economics and Management Sciences, International Islamic University Malaysia.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Ahmed, Abdullah Dahir. Sources of Economic Growth in Sub-Saharan African Countries. Gombak, Selangor: Kulliyyah of Economics and Management Sciences, International Islamic University Malaysia, 2001.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Ahmed, Abdullah Dahir. Sources of Economic Growth in Sub-Saharan African Countries. Kulliyyah of Economics and Management Sciences, International Islamic University Malaysia, 2001.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.