00510nam a2200145Ia 4500008004100000100002300041245003800064260002000102260001300122300000800135650004000143942001000183952015600193999001500349221231s9999    xx            000 0 und d  aComp-U-Learn92225 0aPrinciples of Electronic Commerce  bCompulearn Tech  cJul,2000  a126  aElectronics and Communication92226  cBE_BK  00104070aAITbAITd2015-06-24eCompulearn Techg110.00l0pBE03861r2022-12-31v110.00w2022-12-31yBE_BKzElectronics and CommunicationB1900-01-01  c2416d2416