P. Swartz, Nico. 2009. “THE PROHIBITION OF USURY (RIBA) A MORAL-ETHICAL PERSPECTIVE OF ISLAMIC FINANCIAL AND BANKING LAW: A COMPARATIVE STUDY BETWEEN THE ISLAMIC AND THE CONVENTIONAL MODEL”. Jurnal Syariah 17 (2):409-30. https://ojie.um.edu.my/index.php/JS/article/view/22741.