TY - BOOK AU - Arun Kumar Au. AU - Pankaj Gupta Gu. Mehlawat Mukesh Kumar Gu. TI - Multiple Criteria Portfolio Selection and Evaluation Under a Fuzzy Environment Using Data Envelopment Analysis PY - 2023/// CY - Delhi PB - University of Delhi. Faculty of Mathematical Sciences. Deptt. of Operational Research KW - Operations Research ER -