00270pam a2200109 a 4500020000500000041000500005082001100010100002700021245005800048260004300106300001100149  c  h  a658.83  aRAJARAMAN (V.)eauthor  aEssentials of E-Commerce TechnologyhTextual Document  bPrentice Hall of India New Delhic2009  av, 246