Telecommunications billing systems (CD-ROM) : implementing and upgrading for profitability

Author：Jane Hunter and Maud Thiebaud.
Publisher：McGraw-Hill
ISBN：0071408576 (CD-ROM) :
Publication Date：c2003.
其他作者：Hunter, Jane M. ; Thiebaud, Maud.
語言：zh
出版地：New York : London :
Description

One CD-ROM +

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