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 February 14, 2026. https://jimf-bi.org/JIMF/article/view/650.