00330nam a2200121Ia 4500008004100000020002100041082002000062100002200082245004000104250000800144260004500152300001100197260330s9999    xx            000 0 und d  a9.788121941e+012  a658.4034bGUP/I  aGupta, Prem Kumar 0aIntroduction to Operations Research  a1st  aNew DelhibS.Chand And Company Ltdc2024  a1186p.