00593nam a2200169Ia 4500008004100000020001800041041000800059082002000067100003300087245003300120250001200153260004600165300001000211650001300221999002100234952016800255251125s2021    xx            000 0 und d  a9788121902816  aeng  a658.403/GUP/HIR  aGUPTA PREM KUMAR, HIRA D. S.  aOPERATION RESEARCH (7TH ED.)  a7th Ed.  aNEW DELHIbS CHAND AND COMPANY LTD.c2021  a1498p  aRESEARCH  c1213499d1213499  00104070aETMbETMd2025-10-14eBharati Madhyavarti Sahakari Grahak Bhandar LTD, Puneg730.00l0o658.403/GUP/HIRpETM-E4388r2025-11-25 00:00:00w2025-11-25yBK