Rostami,A , , Ranjbar Fallah,M R , , Khademolhoseini Ardakani,M , , Habibi,M H , , Jamali Neishaboor,A , and Ali Mohammadi,M . "Credit Derivatives: Shari'aa & Economic Feasible Study For Banks Credit Risk Improvement", Journal of Investment Knowledge, 3, بهار 1393, 2014, 187-206.