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r a elbra
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Computer security handbook
R. A. Elbra · NCC Blackwell
197 sayfa · 1992
Business / Computer security / Data processing / Electronic data processing departments / Management
Database for the Small Computer User
R. A. Elbra · International Publications Service
163 sayfa · 1982
Database management / File organization (Computer science) / Microcomputers / Minicomputers