Telecommunications billing systems : implementing and upgrading for profitability /
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| 格式: | 軟件 電子書 |
| 語言: | English |
| 出版: |
New York London
McGraw-Hill
c2003.
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| 叢編: | McGraw-Hill TELECOM professional
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| Item Description: | Accompanied by CD ROM (701000951). |
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| 實物描述: | xix, 458 pages: illustrations; 24 cm. + 1 computer optical disc (4 3/4 in.) |
| ISBN: | 0071408576 |