Brown, Micah
Essential Perl 5 for Web professionals
Prentice-Hall, 1999
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Wall, Larry
Programming Perl
O'Reilly, 1996
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Walsh, Nancy
Learning Perl/Tk
O`Reilly and Associates, 1999
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Merlino, Joseph
Perl weekend crash course
Hungry Minds, 2002
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Schildt, Herbert
The complete reference C# 3.0
McGraw-Hill, 2009
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