Ashar, Muhammad Afthon, and Muhammad Nafik Hadi Ryandono. 2020. “IMPLEMENTASI METODE CIBEST (CENTER OF ISLAMIC BUSINESS AND ECONOMIC STUDIES) DALAM MENGUKUR PERAN ZAKAT PRODUKTIF TERHADAP PEMBERDAYAAN MUSTAHIQ DI LEMBAGA YAYASAN DANA SOSIAL AL-FALAH (YDSF) SURABAYA1”. Jurnal Ekonomi Syariah Teori Dan Terapan 6 (5):1057-71. https://doi.org/10.20473/vol6iss20195pp1057-1071.