Nordin, N., and A. Ab Rahman. “ISU-ISU SYARIAH DALAM KONTRAK DERIVATIF: SATU SOROTAN LITERATUR: Shariah Issues in Derivative Contract: A Literature Review”. Jurnal Syariah, vol. 19, no. 2, May 2011, pp. 163-86, https://vmis.um.edu.my/index.php/JS/article/view/22638.