00195nam a22000857a 4500 9788184833973 658.403 VAR Operation research for management and finance BE_BK 0 0 0 0 AIT AIT 2021-09-29 Asha Book Centre 325.00 0 621.51 PAB BE26075 2022-12-31 325.00 2022-12-31 BE_BK 97 2021-06-24 6982 6982