“Bayaran Tambahan Dalam Kontrak Francais Dobi Layan Diri Dari Perspektif Hukum Syarak: Additional Payment In Self-Service Laundry Franchise Contracts From The Perspective Of Syariah Law ” (2021) Journal of Fatwa Management and Research, 26(2), pp. 158–171. doi:10.33102/jfatwa.vol26no2.404.