Dar, Q.F., Padi, T.R. and Tali, A.M. 2016. Mixed input and output orientations of Data Envelopment Analysis with Linear Fractional Programming and Least Distance Measures. Statistics, Optimization & Information Computing. 4, 4 (Dec. 2016), 326-341. DOI:https://doi.org/10.19139/soic.v4i4.225.