00500nam a22001817a 4500 117234 117233 OSt 20260706113027.0 210417b ||||| |||| 00| 0 eng d 9789351611011 519.8 SWA Swarup,Kanti 1021 Operations Research by Kanti Swarup and Gupta P K etal... Delhi Sultan Chand& Sons 2021 1078 Forecasting Simulation Probability Mohan,Man 1022 ddc BK