00486ca0 a2200205ua 4500001000500000005001700005007000300022008004100025020000900066040000900075041001400084082001300098100002700111245004100138260005000179300001800229504000900247541001500256650000900271749320180503180407.0ta161201s        ii     g     b000 u eng u  cNULL  aMAIN1 aenghNULL  a310bKHA  aKhanna, V K  .eAuthor  aBusiness mathematics / cV K Khanna.  aNew Delhi :bVani educational Books , c1999.  a830 ; cNULL.  aNULL  eU12368      aStat