00320nam a2200121Ia 4500008004100000041000800041082001700049100002600066245002400092260002800116300001800144520003600162240719s9999    xx            000 0 und d  aeng  a658.4034 OBE  aOberoi, Sarbjit Singh  aOperations Research  aNew DelhibSYBGENc2022  a561 P.; 28 Cm  aGifted By : Prof. Sarbjit Singh