Fathomy Rahman, A., and L. Nugraha Rani. “COMPARATIVE ANALYSIS OF BAITUL MAAL WAT TAMWIL EFFICIENCY IN INKOPSYAH BMT MEMBERS IN JAVA ISLAND WITH SUMATRA ISLAND 2013-2017 PERIOD”. Ekonomi Islam, vol. 12, no. 1, May 2021, pp. 67-80, doi:10.22236/jei.v12i1.4842.