Stallings, William
Network security essentials : applications and standards
Pearson, 2014
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Stallings, William
Network security essentials : applications and standards
Pearson, 2011
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Glein, George A.
Data processing mathematics
Prentice-Hall, 1972
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Gregory, Robert Henry
Business data processing & programming
Wadsworth, 1963
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Popkin, Gary S.
Introduction to Data Processing
Mifflin Company, 1981
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