Statistics, D. o. D. a. S. (2024). Demographic Concepts and Characteristics. Department of Demography and Social Statistics, Obafemi Awolowo University.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Statistics, Department of Demography and Social. Demographic Concepts and Characteristics. Department of Demography and Social Statistics, Obafemi Awolowo University, 2024.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Statistics, Department of Demography and Social. Demographic Concepts and Characteristics. Department of Demography and Social Statistics, Obafemi Awolowo University, 2024.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.