Ichwanul Qawi and Muhammad Nur Iqbal 2026. Optimizing the Role of the Indonesian Waqf Board of North Sumatra Province in Increasing the Professionalism of Nazhir in Managing Waqf Productively in Medan Marelan District, Medan City. Fox Justi : Jurnal Ilmu Hukum. 16, 03 (Jun. 2026), 507–515.