Spencer, Donald D.
Data processing: an introduction
Charles E. Merrill, 1982
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Orilia, Lawrence S.
Introduction to business data processing
McGraw-Hill, 1982
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Cashman, Thomas J.
Review manual for certificate in data processing
Anaheim Publishing, 1970
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Awad, Elias M.
Automatic data processing, principles and procedures
Prentice-Hall, 1966
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Basic data processing
Dover Publications , 1971
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