- Object Oriented Perl: A Comprehensive Guide to Concepts and Programming Techniques by Damian Conway, 2000-01-01
- Perl Programming for the Absolute Beginner by Jr.Jerry Lee Ford, 2006-06-30
- Higher-Order Perl: Transforming Programs with Programs by Mark Jason Dominus, 2005-03-28
- Perl in A Nutshell: A Desktop Quick Reference (2nd Edition) by Ellen Siever, Stephen Spainhour, et all 2002-06
- Sams Teach Yourself Perl in 21 Days (2nd Edition) by Laura Lemay, Richard Colburn, 2002-06-10
- Perl Hacks: Tips & Tools for Programming, Debugging, and Surviving by chromatic, Damian Conway, et all 2006-05-08
- Perl & LWP by Sean M. Burke, 2002-06-20
- Programming the Perl DBI by Tim Bunce, Alligator Descartes, 2000-02-04
- DeMark Indicators (Bloomberg Market Essentials: Technical Analysis) by Jason Perl, 2008-09-28
- Gestalt Therapy Verbatim by Frederick S. Perls, 1992-02-01
- Mastering Perl/Tk by Stephen O. Lidie, Nancy Walsh, 2002-01
- Effective Perl Programming: Writing Better Programs with Perl by Joseph N. Hall, Randal Schwartz, 1998-01-09
- The Gestalt Approach & Eye Witness to Therapy by Fritz Perls, 1973-06
- Mastering Perl for Bioinformatics by James D. Tisdall, 2003-06
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