%0 Journal Article %A Nomita Pachar %A Anshu Gupta %A P C Jha %T Bi- Level Programming DEA Approach for Efficiency Evaluation: a Case Study of Indian Electronics Retail Stores %J Yugoslav journal of operations research %D 2020 %P 461 %V 30 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/YJOR_2020_30_4_a4/ %G en %F YJOR_2020_30_4_a4