TY - JOUR AU - Nomita Pachar AU - Anshu Gupta AU - P C Jha TI - Bi- Level Programming DEA Approach for Efficiency Evaluation: a Case Study of Indian Electronics Retail Stores JO - Yugoslav journal of operations research PY - 2020 SP - 461 VL - 30 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/YJOR_2020_30_4_a4/ LA - en ID - YJOR_2020_30_4_a4 ER -