00264nam a2200109 a 450000500170000000800410001704100080005810000170006624500400008326400250012330000060014820260717091930.0260717s2003    ii            000 0 eng d  aeng1 aLal, Harbans10aBusiness Mathematic /cLal, Harbans 1bSultan Chand,c2003.  a-