00434nam a2200145Ia 4500003000400000005001700004008004100021020001800062082001900080100002200099245007300121260005300194300001600247700002500263OSt20250717114604.0240827s9999    xx            000 0 und d  a9788121909686  a658.4034bG95P  aGupta, Prem Kumar 0aProblems In Operations Research cby Prem Kumar Gupta and D. S. Hira  bS. Chand  and Company Limited c2024aNoida,U.P.  a1293p.ePbk  eAuthoraHira, D. S.