00400nam a2200145 a 450000500170000000800410001702000180005804100080007608200080008410000170009224500410010925000120015026400580016230000340022020260717101006.0260717s2013    ii            000 0 eng d  a9789325963474  aeng04a0031 aS. Kalavathy10aOperations Research /cS. Kalavathy  a4th ed. 1aNew Delhi :bVikas Publishing House PVT,c2013, 2020.  axviii, 533 p. : ill. ; 23 cm.