%0 Journal Article
%A Khoshkalam, Muosa, Mahdavi, Rouhollah
%T The relationship between risk Premium varies over time and spot prices: a case study Crude oil futures market
%J Financial Knowledge of Securities Analysis
%V 12
%N 43
%P 193-206
%D 1970
%R 
%U https://sanad.iau.ir/fa/Article/803537