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041 _aeng
082 _a658.4034
100 _aTIWARI N / SHANDILYA S
245 _aOPERATIONS RESEARCH ( TIWARI )
250 _a1
260 _bPHI LEARNING PVT. LTD. NEW DELHI
300 _a292
365 _b187
500 _aPaper Back
520 _aText Book
650 _aMathematics & Statistics
999 _c413449
_d413449