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Showing 1 - 5 of 5 Results
1.
The influence of learning object interactivity on student achievement.
The influence of learning object interactivity on student achievement. by James Helfrich ISBN: 9781249064862 List Price: $69.00

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2.
Security for Software Engineers
Security for Software Engineers by Helfrich, James N. ISBN: 9781138583825
$33.96
3.
C++ Data Structures
C++ Data Structures by Helfrich, James N. ISBN: 9781792430848 List Price: $48.00

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4.
User Interface Evaluation & Design
User Interface Evaluation & Design by Helfrich, James ISBN: 9781607978244

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5.
Security for Software Engineers
Security for Software Engineers by Helfrich, James N. ISBN: 9780367656812

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