Beik, I. S. (2010). Economic role of zakat in reducing poverty and income inequality in the province of DKI Jakarta, Indonesia: Case study of the government board of zakat and Dompet Dhuafa Republika. Kulliyyah of Economics and Management Sciences,International Islamic University Malaysia.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Beik, Irfan Syauqi. Economic Role of Zakat in Reducing Poverty and Income Inequality in the Province of DKI Jakarta, Indonesia: Case Study of the Government Board of Zakat and Dompet Dhuafa Republika. Gombak, Selangor: Kulliyyah of Economics and Management Sciences,International Islamic University Malaysia, 2010.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Beik, Irfan Syauqi. Economic Role of Zakat in Reducing Poverty and Income Inequality in the Province of DKI Jakarta, Indonesia: Case Study of the Government Board of Zakat and Dompet Dhuafa Republika. Kulliyyah of Economics and Management Sciences,International Islamic University Malaysia, 2010.