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>> How to build a structure that is easy to change and extend. This is a very good book on subject, very clear: http://www.amazon.com/Practical-Object-Oriente

by minthd 11y ago

>> How to build a structure that is easy to change and extend. This is a very good book on subject, very clear: http://www.amazon.com/Practical-Object-Oriented-Design-Ruby-Addison-Wesley/dp/0321721330 http://www.amazon.com/Practical-Object-Oriented-Design-Ruby-...