00000nam a2200000 a 4500 20251219155901.0 9789391820350 658.4034 GUP Gupta S.P _ Gupta P.K _ Mohan, Man Business statistics and operations research _ New Delhi Sultan Chand and Sons 2022 xvi, Approx Page{BS.1.1 to OR 7.48]. 24cm. PB _ Business Operations research _ _ _ 228253 312432 312432 0 0 0 0 PU PU 2023-03-20 476.00 0 658.4034 GUP 228253 2026-01-05 BK