Mohamad, S., and M. Mahbubi Ali. “JUAL BELI SURAT PAJAK GADAI: ANALISIS MENURUT PERSPEKTIF SYARIAH: The Sale of Pawn Broking Certificate: A Shariah Analysis”. Jurnal Syariah, vol. 23, no. 3, June 2017, pp. 365-76, doi:10.22452/js.vol23no3.1.