Komarudin, Muhamad. “Implementation Of Istishna ’Aqd In The Financial Investment Scheme Of Koperasi Syariah Benteng Mikro Indonesia”. Jurnal Ilmiah Ekonomi Islam, vol. 10, no. 1, Mar. 2024, pp. 1063-70, doi:10.29040/jiei.v10i1.12200.