%0 Journal Article %A Ahmadzadeh, Azam %T Data Envelopment Analysis Models In The Presence Of Ratio Data and Non-Discretionary Factors %J International Journal of Data Envelopment Analysis %V 4 %N 4 %P 1095-1110 %D 2016 %R %U https://sanad.iau.ir/fa/Article/826454