00556nam a22001817a 450000500170000001000150001702000260003203500130005803700130007108200230008410000170010724500970012425000150022126000380023627000450027430000350031950000200035420130913122243.0  aENG-108131  a9788176567138c240.00  aEN-91664  bDBAD/PUB  23rd rev eda005.43  aJain, Satish  a'O' level made simple module-1 :cby Satish Jain [et.al...]bIT tools and business systems /  a3rd rev ed  aNew DelhibBPB publicationsc2013  bNew Delhie110001aB-14, Connaught Place  axxii,436p. :c24cm(pbk)bill.   aIncludes index