Sumarti, Novriana, and Adythia Dean Marendri. “A MATHEMATICAL MODEL OF PROFIT-LOSS SHARING SCHEME OF SMALL INVESTMENT FOR TRADITIONAL MARKET TRADERS USING THE SEMI-FUZZY LOGIC APPROACH”. Journal of Islamic Monetary Economics and Finance 2, no. 2 (February 28, 2017): 173–192. Accessed December 29, 2025. http://jimf-bi.org/JIMF/article/view/650.