Title: Best way to learn references
Review: This is one of the four critical books you need to learn Perl; Programming Perl, Learning Perl, Perl Cookbook and Advanced Perl Programming. This book provides a deep understanding of how references (pointers) can be used to increase performance. In addition the book gives you a deeper understanding about how to make better use of hash tables as data structures. The section on code generation using templates is great as well.
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