Hilmiyah, Ulfah, Irfan Beik, and Khonsa Tsabita. 2018. “MEASURING NATIONAL ZAKAT INDEX (NZI) ON ZAKAT PERFORMANCE IN BOGOR REGENCY”. Journal of Islamic Monetary Economics and Finance 3 (May), 179 -92. https://doi.org/10.21098/jimf.v3i0.912.