Abdul-Jabbar Al-Samarrai, M. A. S. “The Theory of Interest for Imam Najm Al-Din Al-Toufi and the Modernists - A Comparative Purpose Study -”. Journal of Tikrit University for Humanities, vol. 28, no. 5, May 2021, pp. 1-19, doi:10.25130/jtuh.28.5.2021.01.